s p Zh e East Africa and Uganda Natural History Society APk is 0 1021 ° \ river must have been very much bigger/at soma d^ta\or(jtee & it had altered its course. The preseri|^ctMPriVer-bea is y well defined, but on either side for some di^ance up to a quarter^ / of a mile there is heavy sand, as if deposited^W^^c^to^^l^’,,' the water, and then there is a bank of about 6 feet Ub’Tothe stone and shingle. The present actual bed of the river winds about from side to side of this greater valley. The same applies to the Turk- well, only in a greater degree. The next stage of the journey takes us to Kobua River at Rudolph. The camping grounds are Skull Camp, Lodwar, Kobua waterholes, and then on to Rudolph, about 61 miles. The first two stages to Lodwar follow the Turkwell. Water is obtained by digging in the river-bed if the river is not running. Along the Turkwell there is a thick fringe of timber and scrub, and the country is sandy. Away from the river the country is all rough stony plain, covered with horrible thorny bush. There is a fine outcrop of hill at Lodwar, running north-west and parallel to another river called the Kagwalla, this river rising on the north side of the Murissica Mountains. The pro- minent peak of this range is an important landmark and when climbing it appears to be nothing but a heap of volcanic shingle. From Meuressi to Lodwar the Turkwell runs practically north, but at Lodwar it takes a bend round to east and follows this general direction right on to Rudolph. The Turkana in this district were aggressive and attacked a small patrol of Askaris one night. They didn’t count on the sentry being awake ! When he fired at them he killed two with one shot. The skulls of these two Turkana adorn the outskirts of the camp and give to it the name Skull Camp. At Lodwar we leave the Turkwell and take to the desert track which runs to Kobua waterholes. This is a long water- less track and very hot, so we started at four in the afternoon and travelled all night, reaching the waterholes next morning. 8 ON A COLLECTION OF BIRDS The country is flat stony plain, covered with the eternal thorn bush. Just a few miles before the waterholes we entered a low range of hills, running north and south, which extend from the Turkwell on the south up to the Labur Mountains, a distance of about 100 miles. Along the road they are about 8 miles wide. The general direction Lodwar to Kobua waterholes is north-east. Kobua waterholes to Kobua River north-east by east. The next morning we marched into Kobua Camp, which was at that time the headquarters of the Force. The scenery round the shore is improved by the presence of stately Dom palms, but farther back from the lake the same thick scrub and thorn bush is in evidence. The soil here is sandy and covered with large numbers of shells, indicating that Rudolph must have covered this area at some remote time. The great attraction at Kobua Camp is naturally the lake. We could not take our eyes off the beautiful expanse of blue water, especially after the country we had come through ; and the breeze — well, I can only leave the reader to imagine it ! Upon our arrival we interrupted a battle royal between a scorpion and a tarantula. We found all the European officers, except those on patrol duty, standing open-mouthed watching this. One stout civil official acted as bookmaker, and bets on the issue were flying around. I think the picture I have painted of Turkanaland is pretty black, but to kill any doubts let me mention a few of the vermin. Scorpions there are in thousands, some black, others brown, of huge size, and these secrete themselves under boxes and such like and woe betide the unfortunate individual who goes to lift the box. Nearly all the officers were bitten at one time or another. The largest centipede I ever saw was here. Tarantulas abound among the palms and hold their nightly ngomas. The one redeeming feature of Turkanaland is Lake Rudolph. It is not like other lakes in East Africa. Here are beautiful FROM TURKANALAND 9 sandy beaches, most perfect for bathing, despite the crocodiles. Bird-life teems ; duck, pelicans, egret, and flamingo exist in countless numbers. I once saw 40 acres covered by pelicans as close as they could sit. The reader will see from this introduction that the collection of birds comes from a district practically unexplored, and only just opened up by the military operations, and will realise the difficulties which had to be contended with in getting together such a remarkably interesting series. Nectariniid^j 1. Nectarinia pulchella . Linn. Green-bellied, long-tailed Sunbird. (J 9. Kobua River, W. Rudolph. March 1918. 5 12. Meuressi, Turkwell River. January 1918. Juv. 4. Meuressi, Turkwell River. January 1918. It is interesting to note that the birds collected in January are all in heavy moult and assuming the adult plumage, while those shot in March are in full breeding dress. Exactly where N. pulchella meets N. melanogaster it is difficult to say at present, but N. melanogaster has been collected at Kacheliba. 2. Hedydipna platura karamojce. van Someren, February 1920. Yellow-breasted, long-tailed Sunbird. > Peas 12 „ 0-2 Hay . 6-18 „ 0*8-1 *5 tf Clover . 28 „ 0-1 }> Potato . 20-28 „ 0*3-0* 6 }> It is evident, then, that the case is pretty well made out for the Herbivora demanding a larger supply of sodium salts. I gather that there are no ‘ salt-licks ’ in the country in which the Lumbwa Cave is situated. Hence the avidity with which the cattle consume the relatively sodium-rich material. There is, however, one difficulty in this explanation. I understand that animals become excited and anxious to get to the cave a long way off. This is suggestive of an odour, and sodium salts are, so far as I know, devoid of smell. Hence the animal does not get excited about the sodium. I do not think it likely that the material is consumed as an antacid. Nor, as the animals are Herbivora, and pre- sumably consume large quantities of cellulose, do I think that the material is ingested as intestinal ballast for irritative purposes. On the other hand, the suggestion that its con- sumption has something to do with ‘ discouraging intestinal parasites ’ is extremely interesting, and may be well worth following up. We know practically nothing about the influence of the environment on the growth of intestinal parasites of any kind. Printed by Spottiswoode, Ballantyne cS* Co. Ltd. Colchester, London & Eton, England Zhc Journal OF THE East Africa and Uganda Natural History Society March 1922 No. 17 CONTENTS ON PHYTOPHAGOUS COLEOPTERA OF THE FAMILY CHRYSO MELID2E. (Illustrated .) A. F. J. Gedye, F.E.S. ON CERTAIN COLOUR PATTERNS IN LYC.ENID.aE3. (Illustrated . V. G. L. VAN Someren, C.M.Z.S., M.B O.U., ETC. NOTES ON THE WASANYE. (Illustrated .) A. M. Champion THE BAJUN ISLANDS. J. T. Juxon Barton ..... NOTES ON EAST AFRICAN MAMMALIA (Part II). A. Loveridge O.M.Z.S 18 24 NOTES THE RAID OF THE PONERA, AN IMPRESSION. R. Harger THE MIGRATIONS OF BUTTERFLIES. H. L. Andrewes ON BAOBABS AND RUINS. 0. W.JHobley . SHELL REMAINS. C. W. Hobrey .... LETTER TO THE EDITOR ANNUAL REPORT BALANCE SHEET ACTING EDITOR OF JOURI^L DR. V. G. L. VAN SOMEREN IPR 20 1025 V „ «/■? f/otJ I s, „>VJ< LONGMANS, GREEN. AND CO. 39 PATERNOSTER ROW, LONDON. NEW YORK, BOMBAY, CALCUTTA AND MADRAS All rights reserved Additional copies : to members , Us. 3 ( 6/-) ; to non-members, 1 Is. 4 ( 6/6 ) HUNTLEY & PALMERS LIMITED Do not omit Biscuits from your chop-box on Safari. Do not omit a few tins of Cakes, Rich Mixed, Carmencita, Corona- tion, Macaroons, Ratafias, Afternoon Tea, Shortbread, or Troubadour Biscuits for stray visitors to your Camp. Do not omit to stuff a few Biscuits in your pocket when your boy shrieks “Simba,” “Simba.” You may have to walk a few miles before your shot is successful. Do not omit to inform the Local Agents if you cannot obtain the Biscuits you want. Kettles- Roy & Dawson, Ltd.,P.O.B. ioo, Nairobi Also at Zanzibar, Daressalam, etc. / I 3\H!RHTYJp^; ,or:J Jgisyirtjfw ^rijyiO %?>! '«; '■■'jos rqyfio Q ■ .‘>f.jO'>i .auidrrijeeu c’bborf^o: ' 3kVifJ!T JAH ''•»H3 .sa^hyq jsolslaH , ':'S»W i : v ■:&m\noomo %$ .q ^ am&J *■ 3\il!OUfl2J:- . £ 10 .eilsupaswf rmi.aq (js'T&ib.Bqirnee .. e . ■ • r ■ 3YMia!g8AJ> sicisat-.^n sbhirtO .-^winoAe fb/i . tYiJ'i'iurn &■:■■ 9 .ini J*iMOSYflHO ■ •iUdT ,fiO-.OCH-- .mnteq ^s^svitoiql ,6m .3^QiJ bMOSYRHO K ">3iWA ?. lii ' . .. * 1 oj bsbnoir.: bbiaae&iq&i ri esbiIsmo;-v iriD to *sb*>q:- j;; . ; (.esilimjsl-dipg tiBo’ii/ }&b3 od* lo 4 CRYPTOCEPHALIN/E Cryptocephalus sp. 5 EUMOLPHIN/E Corynodes usambius, Kolbe. 3 CLYTHRIN/E Clythra wahlbergi, Lac. 2 CRIOCERIN/E Lema sp, 9 HISPIN/€ Chrysispa acanthina, Reiche, 8 HALTICIN/E Haltlca pyritosa, Erichs, var. impyritosa, Weise. 7 GALERUCIN/E Hyperaeantha insequalis, Chap, var. semipalliata, Fairm. 6 CHRYSOMELIN/E Chrysomela superba, Thun, ab. interversa, Fairm. 1 SAGRIN/€ Sagra murrayi, Baly. 10 CASSIDiN/E Chirida nigrosepta, Fairm EAST AFRICAN CHRYSOME LID/E. (The species of Chrysomelidae here represented are intended to be typical of the East African sub-families.) THE JOURNAL OF THE EAST AFRICA AND UGANDA NATURAL HISTORY SOCIETY March 1922 No. 17 Ipatrons SIR EDWARD NORTHEY, K.C.M.G. SIR ROBERT CORYNDON, K.C.M.G. SIR F. J. JACKSON, K.C.M.G., C.B., F.Z.S., M.B.O.U. SIR H. C. BELFIELD, K.C.M.G. SIR E. P. C. GIROUARD, K.C.M.G., R.E., D.S.O. SIR JAMES HAYES SADLER, K.C.M.G., C.B. SIR HESKETH BELL, K.C.M.G. Iprestoent SIR CHARLES BOWRING ItMce^lpresIDents A. B. PERCIYAL, Esq., F.Z.S., M.B.O.U. R. E. DENT, Esq. Bjecutlve Committee W. McGREGOR ROSS, Esq., B.A., M.Sc., B.E. GRAHAM DAWSON. Esq. A. DAVIS, Esq. V. K. KIRKHAM, Esq., B.Sc., F.I.C.Agl. F. L. FORBES, Esq. P. L. PARKER, Esq. J. P. COOK, Esq., M.B.O.U. E. BATTISCOMBE, Esq., Assoc. Arbor. Soc. IbonoratE ^Treasurer H. C. E. BARNES, Esq., C.B.E. IbonorarE Secretary DR. V. G. L. van SOMEREN, L.R.C.P. & S., L.R.F.P. & S., M.B.O.U., C.M.Z.S., &c. Curator A. F. J. GEDYE, Esq., F.E.S. Acting JEbltor of journal DR. V. G. L. van SOMEREN 1922 No. 17. CONTENTS PAGE ON PHYTOPHAGOUS COLEOPTERA OF THE FAMILY CHRYSO- MELIDiE. {Illustrated.) A. F. J. Gedye, F.E.S. . . . 3 ON CERTAIN COLOUR PATTERNS IN LYCiENIDiE. {Illus- trated. ) V. G. L. VAN Someren, C.M.Z.S., M.B.O.U., ETC. . 18 NOTES ON THE WASANYE. {Illustrated.) A. M. Champion . 21 THE BAJUN ISLANDS. J. T. Juxon Barton. 24 NOTES ON EAST AFRICAN MAMMALIA (PART II. ). A. Loveridge, C.M.Z.S 39 NOTES. THE RAID OF THE PONERA, AN IMPRESSION. R. Harger. 69 THE MIGRATIONS OF BUTTERFLIES. H. L. Andrewes . . 72 ON BAOBABS AND RUINS. C. W. Hobley .... 75 SHELL REMAINS. C. W. Hobley 77 LETTER TO THE EDITOR 78 ANNUAL REPORT 78 BALANCE SHEET 80 3 ON PHYTOPHAGOUS COLEOPTERA OF THE FAMILY CHR YS OMELIDiE By A. F. J. Gedye, F.E.S., Curator of the Nairobi Museum Introduction The Phytophaga form an extensive group of beetles, in- cluding something like 40,000 species ; this, however, must be only a small portion of those existing on the globe. The term Phytophaga is restricted by many taxonomists to the Chrysomelidce, but in the opinion of the majority it is impossible to satisfactorily separate the Longicornia from the group. The Lariidce (Bruchidce) are also considered, by some, to form a family of Phytophaga, but a study of the nervous system shows it to be more concentrated and al- together more highly specialised than that of the other families of Phytophaga. From these considerations it is perhaps advisable to place the Lariidce in the Bhynchophora, whose internal morphology is apparently of a more recent and advanced type. As before stated, the two families of Longicornia cannot be separated from the Chrysomelidce on any definite characters, although an acquaintance with the general facies of the families would, in most cases, prove sufficient for mere differentiation. Jacoby (‘Fauna Brit. Ind.: Coleoptera,’ II, 1908, p. 3) states that usually, in the Longicornia, ‘ the shape is very elongate, the head projecting and prominent, the eyes oblique and more or less divided, and the antennae peduncular, these organs at the same time rigid and tapering at the apex. All these structures are not as a rule found in the Chrysomelidce.’ We will therefore consider here the Phytophaga as con- taining three families which may be distinguished, according to Fowler,1 as follows : — 1 Fowler, Fauna Brit. Ind., Gen. Introd., p. 177. 4 ON PHYTOPHAGOUS COLEOPTEEA I. Antennae short or moderate, not in- serted on frontal prominences ; tibial spurs usually absent . Chrysomelid^l II. Antennae usually long or very long, frequently inserted on frontal prominences ; tibial spurs distinct. (a) Head in front oblique or subvertical Cerambycid^ej. (b) Head in front vertical or bent inwards below the thorax Lamiid.®. It is proposed, in the present paper, to consider the Chryso- melidce, with general remarks on their habits, structure, and classification, and any notes, that are known or available to the writer, with reference to their occurrence in East Africa and Uganda. Form variable ; head prominent or moderately, so, and inserted in the pronotum as far as the eyes ; antennae moderately long, variable in shape and insertion, usually eleven- jointed and moniliform (shaped as if formed by beads) ; pronotum with or without lateral margins ; elytra usually covering abdomen, but sometimes leaving the pygidium exposed, upper surface usually bare, often brightly coloured and metallic ; legs variable, tarsi pseudotetramerous. The Chrysomelidce form an enormous family of over 20,000 known species, and it is probable that, when the family has been thoroughly worked in the tropics, the above number will not form a fifth of the total existing species. The beetles are, without exception, plant- feeders both in the larval and perfect states. Many of the species are of considerable economic importance as pests of cultivated trees and shrubs. A notable instance is that of the Colorado Potato Beetle ( Doryphora decemlineata) , which caused so much destruction in North America some years ago. Chrysomelidce can best be captured by beating trees and Family Chrysomelid^ OF THE FAMILY CHRYSOMELID^ 5 bushes into a net or umbrella, and by sweeping grasses and any kind of herbage ; damp vegetation near the banks of streams being particularly productive. Very little is known of the life history of the family ; altogether about 100 species have been worked out, most of these being European. The special modifications of the different larvae and pupae will be alluded to under the different families. The following table of larvae is that given by Chapuis (‘ Genres des Coleopteres, Suites a Buffon,’ X, 1874, p. 15), with alterations by Sharp (‘ Cambridge Nat. Hist.,’ Vol. VI, p. 279), and quoted by Fowler (op. cit., p. 182). I. Larvae with the body uncovered. A. Larvae elongate, subcylin- drical, whitish, living on or in the stems of aquatic plants under water ; pupae also subaquatic, contained in cocoons fixed to the roots of the plants . . Donaciin-e. B. Larvae mining, more or less elongate, sublinear or nar- rowed at each end, under- going their metamorphoses on the plants . . . HiSPiNiE and some Halticin^j. <7. Larvae short, oval, very con- vex above, often more or less brightly coloured, or dark metallic, living ex- posed on the plants and undergoing their meta- morphoses on the plants or in the ground . . . Cyclica (most). II. Larvae with the body protected by excrement. A. Larvae short, oval, very con- vex above, dark coloured, 6 ON PHYTOPHAGOUS COLEOPTERA without any special appar- atus for carrying the excre- mentitious matter, under- going their metamorphoses in the ground . . . Criocerin^e (in part). B. Larvae short, oval, somewhat depressed, spiny, with the excrement supported and attached by a special appar- atus, undergoing their meta- morphoses on the leaves . Cassidinje. III. Larvae elongate and whitish, with the abdomen curved, inhabit- ing portable tubes or cases and undergoing their metamor- phoses in these . . . Clythrin^ (and most Camptosomes). The classification of the perfect insects is but little advanced in spite of the large number of forms which have been described. The best arrangement, however, is perhaps that adopted by Jacoby (op. cit., p. 3). I. Mouth placed anteriorly. A. Antennae widely separated at base ; elytra of hard texture, intermediate ventral segments not medially constricted ; pvgidium not exposed. (a) Thorax without distinct lateral margins, head produced, eyes promi- nent, prosternum exceed- ingly narrow . . Eupodes. ( b ) Thorax with distinct lateral margins (rarely without), head not produced, eyes not prominent, proster- num broad . . Cyclica. OF THE FAMILY CHRYSOMELIDiE 7 intermediate ventral segments constricted; pygidium usually exposed Camptosomes. B. Antennae not widely separated at base, generally closely approximate ; elytra more or less soft in texture Trichostomes. II. Mouth not normal, small, hidden or nearly so Cryptostomes. Although the distinguishing features in the above table between the different groups may not in all cases appear very clear, it may be remarked that a practical acquaintance with a few selected types will, in nearly all cases, enable the beginner to relegate his species to the different groups. Unfortunately all the literature on East African Chryso - melidce that has appeared is widely scattered in odd papers in various publications. However, a fair number are described by Kolbe in ‘ Deutsch-Ostafrika : Thierreich,’ by Jacoby in the Proc. Zool. Soc., and by Weise in various German publications. I may add that I shall be delighted to give what help I can to any members of the Society who feel inclined to take up the study of this fascinating group of beetles. This division of Chrysomelidce contains three sub- families : Sagrince, Donaciince, and Criocerince. The Donaciince are remarkable on account of living a semi- aquatic existence, wholly aquatic in the case of the larvae. The sub- family, however, is characteristic of the temperate zone, and I can find no record of its occurrence in Eastern Africa. The Sagrince and Criocerince are, however, represented in our region, and may be roughly distinguished as follows : — I. Size large ; posterior femora strongly thickened ..... S ageing. II. Size small ; posterior femora not strongly thickened . . . Criocerin^. Division I. Eupodes 8 ON PHYTOPHAGOUS COLEOPTEEA The Sagrince are moderately large insects, often brightly metallic, with strongly dilated posterior femora. It appears that the use of the latter organs is not for saltatorial purposes, as the insects are frequently found suspended from stems and branches, head downwards, and supported by the hinder femora. Species of Sagra are common on the west coast of Africa, and I have taken a bright purple species in Natal, but few seem to be recorded from our territory. A variety of Sagra murrayi, Baly, is recorded by Kolbe 1 from Tan- ganyika Territory, and from Ruwenzori by Gahan,2 and the Nairobi Museum possesses a brown, slightly metallic species from Ruiru. The Criocerince, however, are largely represented in East Africa and Uganda, most of the species belonging to the great genus Lema, which contains over 800 species, occurring in most parts of the world. They are small, brightly coloured beetles, of hard integument, usually to be found in damp places. In the collection of Coleoptera in the Nairobi Museum there are five or six unidentified species of Lema from various parts of Kenya Colony ; there is also a specimen of Lema chalcojptera, Lac, a small, brightly metallic aeneous species from Tanganyika Territory. Some of the larvae of the genus Crioceris have the power of covering themselves entirely with excrement, which, however, can be cast off at will. According to Sharp (‘ Cambridge Nat. Hist.,’ Vol. YI, p. 281), some of the imagines have the power of stridulating by means of two contiguous areas situated on the last dorsal segment of the abdomen. Division II. Camptosomes This division is remarkable on account of the peculiar structure of the abdomen, which appears to be connected with the habit of forming a case to envelop the egg. The division contains six sub- families — viz., Megascelince, Megalopince, Clythrince, Cryptocephalince , Chlamyince, and 1 Deutsch-OstafriJca, IV, e Coleoptera,’ p. 325. 2 Trans. Zool. Soc Vol. XIX, pt. ii, p. 216. OF THE FAMILY CHRYSOMELIDiE 9 Sphaerocarince. We will here consider only the Clythrince and Cryptocephalince, as they are best represented in our region. They may be roughly distinguished as follows : — I. Form more elongate, less convex ; rarely metallic and iridescent ; eyes inserted higher on head . Clythrin^j. II. Form less elongate, more convex ; often metallic and iridescent ; eyes inserted lower on head . Cryptocephalinje. The Clythrince are often moderately large insects decorated with conspicuous spots and stripes on a lighter background, and can be sometimes beaten from trees in the vicinity of ants’ nests. The beetles comprising the sub- family Cryptocephalince are often of great beauty, and when seen in the net give one the impression of ‘ living jewels.’ They are exceedingly wary, and often the least sound will cause them to drop from trees and bushes into the long grass, rendering further search futile. Cryptocephaline larvae are, according to Weise,1 most remarkable ; they inhabit portable cases with the abdomen curled against the sternum. They can only emerge from the cylindrical case as far as the first abdominal segment, and, in consequence, progress with a curious jerky motion. A pretty little Cryptocephalus has recently been taken by the Rev. K. St. Aubyn Rogers at Sagalla, and presented by him to the Nairobi Museum. Division III. Cyclica To this division belong the mass of the Chrysomelidce ; the species are most permanently brilliant in their colours, although they are surpassed in life by some of the Cassidinoe. Three sub- families are contained in this group — viz., Lamprosomince, Eumolphince, and Chrysomelince. Some of the Chrysomelince are serious pests of vegetation, such as Doryphora ( Leptinotarsa ) decemlineata, before mentioned, also the common ‘ Mustard Beetle ’ ( Phaedon cochlearice) ; 1 Weise, Naturg. Ins. Deutsch., VI, p. 139. 10 ON PHYTOPHAGOUS COLEOPTERA the larvae are, however, in many cases kept down by parasitic Hymenoptera of the family Braconidce. The Lamyrosomince are not, I believe, represented in our fauna. The Eumolphince and Chrysomelince may be separated as follows : — I. Form more elongate, less convex ; pronotum narrower ; mandibles vertical or sub- vertical . . EuMOLPHiNiE. II. Form ovate, very convex ; pronotum broader ; mandibles rarely vertical or sub- vertical .... Chrysomblin^j. The Eumol'phince constitute a large sub- family of very brilliant species ; there is a large amount of individual variation amongst its members, one species sometimes being represented in blue, green, red, gold, and all the intermediate shades. The sub- family is well represented in East Africa and Uganda, although the family is very little worked, and there is no doubt that a large number of new species will yet have to be described. One of the most beautiful genera is Corynodes ; they love damp places, and I recently took a fine species by the side of a stream on the road between Kampala and Entebbe. Some species affect trees in drier situations, and I recently beat a large number of a pretty red and black species from acacia trees at Thika, near Nairobi. When discovered they are by no means agile, and affect death, although their coloration is so conspicuous that any chance of escape is slight. The beetles comprising the sub- family Chrysomelince are typical Chrysomelids, and very numerous in practically all parts of the globe. In many cases different species are severely attached to distinct plants, and to be found must be searched for in their various habitats. I was once collecting at Kimberley, South Africa, in a field in which there were perhaps six species of plants in great abundance growing round a dried- up ‘ vlei * ; five of these plants harboured, respectively, the same number of Chrysomelince, and in no cases were they found to be infringing on each other’s habitat. The Chrysomeline larvae feed in most cases on the plant OF THE FAMILY CHRYSOMELIDiE 11 which the adult frequents; they are very sluggish in their movements, and are generally of a pale and insipid colour. The genus Plagiodera appears to be moderately common in our region. Several species are recorded by Gahan (op. cit., p. 217) from the western portion of Uganda; these are, however, probably absent from Kenya Colony, as it is a well- known fact that the fauna of Uganda bears a closer relation- ship to that of West Africa than to the eastern portion of the continent. The Nairobi Museum possesses examples of Plagiodera egregia, Gerst., from Kilindi in Tanganyika Territory. Ceralces is a rather inconspicuous genus of itinerant species occurring throughout our region. The Museum possesses specimens of Ceralces natalensis, Baly, from Dar-es- Salaam. This species (as its name implies) was originally recorded from Natal, and it will be found that there is a marked similarity between the coastal faunae of the whole of the East African coast. Division IY. Trichostomes The Trichostomes include a vast assemblage of smaller forms comprised by two sub- families, the Galerucince and Halticince. Although these two sub- families differ rather greatly in external form, they have several characters in common. I. Exo- skeleton softer; legs slender, weaker, and feebler, and not adapted for jumping . . . Galerucin^b. II. Exo- skeleton harder ; legs shorter, stouter, and adapted for jumping, posterior femora visibly dilated . Halticin^. The Galerucince are probably the most abundant group of the Chrysomelidce, and generally form a feature of the contents of the sweeping net. It may be well to remark here that it is always advisable to examine the contents of one’s net, if possible, in the shade, as the beetles do not then so readily take to the wing or make use of their saltatorial powers ; this applies not only to the Chrysomelidce, but to other families of Coleoptera, particularly to the Malacoderms and arboreal Heteromera. 12 ON PHYTOPHAGOUS COLEOPTERA The Galerucince are well represented in East Africa and Uganda, and much work remains to be done amongst the group. Among four species of Galerucince submitted to the British Museum by Sir Harry Johnston, Gahan records two as new to science (Johnston’s ‘ Uganda Protectorate,’ Yol. I, p. 464). The sub- family is also of economic importance, and Idacantha magna, Weise, is recorded by Dr. Aulmann 1 as a serious pest of coffee in Tanganyika Territory. Out of fourteen Galerucince captured by the Zoological Expedition to Ruwenzori, Dr. C. J. Gahan describes no less than eight as new.2 This affords another striking proof of how abundant Galerucince are, and of the extreme probability that many new forms will yet be dis- covered by means of careful collecting. Many Galerucine Coleoptera are of dull and inconspicuous coloration. The genera Oides and Cerochroa are notable in this respect, and females may often be taken with their abdomens enormously distended by eggs ; when in this condition they are very clumsy in their movements, and make no effective effort to escape. A very beautiful little Galerucine occurs around Nairobi which might be almost considered the national beetle of Belgium. The head and legs are a pale testaceous, while the elytra consist of three transverse fasciae alternating in black, red, and yellow. Agelastica is a genus of rather uninteresting beetles of an obscure appearance; they are not uncommon in East Africa in damp places. Monolejpta is a very large genus of small, prettily variegated species occurring throughout Africa ; M. leuce, Weise, and M. lineata, Karsch., are to be taken with ease around Nairobi. Once while sweeping Com- posite plants at Kampala, Uganda, I was astonished to note that at every sweep myriads of small yellow beetles flew from my net ; on examination they proved to be small Galerucince of the genus Hyperacantha. The Halticince are a most interesting sub- family of small beetles gifted with extraordinary (for their size) powers of leaping, of which they do not hesitate to make use. They are 1 Aulmann, Die Fauna der deutschen Kolonien, Heft 2 : ‘ Die Schadlinge des Kaffees,’ 1911, p. 51. 2 Report' on the Zoological Expedition to Ruwenzori, pt. ii, pp. 218-224. OF THE FAMILY CHRYSOMELIDCE 18 exceedingly common in onr region, and may be taken at almost every movement of the net.1 The ancient genus Haltica of Linnaeus seems to have a worldwide distribution, and can be taken in profusion by the sides of East African streams. They are very variable, and are of some importance in the study of variation. The Nairobi Museum possesses some interesting series of Haltica oleracea , L. : a large number of specimens from Ruiru are, without exception, of a mauve colour ; specimens from the Karura Forest, Nairobi, are totally greenish ; while I have taken specimens at the Nairobi River of two aberrations — viz., a distinct cyaneous blue and of a reddish purple. As an instance of the wide distribution of this species I may mention that I have taken it commonly in various localities in the south of England ; also in eight widely separated localities in South Africa. A thorough study of this remarkable little species would probably be of interest. Many of the sub- family are of an obscure testaceous colour; the Museum possesses specimens of AjpJithona marshalli, Jac., a minute yellow beetle, from ‘ German ’ East Africa. One or two African genera are large and conspicuous, notably the genus Podagrica, which contains rather large species of hard and compact integument, usually variegated with black spots or stripes on a yellow background. This genus is widely distributed in Africa, and the Museum possesses specimens from Sagalla, and I have taken the species commonly at Isipingo in Natal.2 Regarding the economic side of the family, the dreaded ‘ Turnip Flea ’ ( Phyllotreta ) belongs to this group, and many others which have not received such euphonious appellations as the former name. Division Y. Cryptostomes This division contains some very peculiar beetles, on account of the extraordinary structure of the exo- skeleton. It is the smallest division of the Chrysomelidce, and the two sub- families, 1 The Nairobi Museum will be very glad to receive any specimens of Halticince, however common, in any number. The Museum will also be pleased to receive other Chrysomelidce. 2 Dr. van Someren has recently taken a species at Eldoret on the Uasin Gishu Plateau. 14 ON PHYTOPHAGOUS COLEOPTEEA the Hispince and the Cassidince, may be distinguished as follows : — I. Eorm oblong or elongate ; head not covered by pronotum ; elytra usually armed with spines, or the dorsal surface is at least rugose . Hispin^i. II. Form ovate or hemispherical ; head always covered by pronotum ; elytra not armed with spines, elytral epipleurse strongly ex- panded ..... Cassidince. The Hispince are a small and remarkable sub- family ; the greater portion of the species belong to the genus Hispa, the members of which are armed with often long and curious elytral spines. The antennae are inserted very closely to- gether, and the tarsal claws are very short. Very little is known of Hispine larvae or of the complete metamorphosis ; Perris (Ann. Soc. Liege, X, 1855, p. 260) has worked out the life- history of the single European species, Hispa testacea. The larvae feed on the parenchyma of the leaves of Cistus salvifolius, and they only rupture the epidermis of the leaves when wishing to remove to a fresh habitat. The habits of some of the large exotic species are probably very different, and, unfortunately, nothing appears to be known as yet, although the recently published volume of Maulik (‘ Fauna Brit. Ind. : Cassidinae and Hispinae ’) may contain some fresh data^ Species of Hispa occur freely near Nairobi, in the Ngong Forest, and in other parts of East Africa and Uganda. I have recently taken a beautiful blue metallic species, armed with long black spines, from reeds at the base of the Chania Falls, Thika. It is difficult to speculate as to the function (if any) of the curious armament of the Hispince. Whether it is formed for protection — for its structure would certainly make it unpalatable, and probably intimidate its enemies — or is the result of some cell stimulus as an example of over- specialisation, is rather difficult to decide in the present state of our knowledge. The Cassidinae are an interesting sub- family of moderate extent. They are usually shield- shaped or hemispherical, OF THE FAMILY CHRYSOMELHXaE 15 with greatly expanded elytral margins. While alive they surpass any other Chrysomelidce in beauty and brilliance of colouring ; it is deplorable, however, that after death these colours quickly fade, leaving us with a drab, dull yellowT insect. These colours would probably be retained if the elytra could be kept moistened with glycerine or spirits of wine ; often an old specimen can be rejuvenated for a time by soaking in water. Cassidince, or ‘ Tortoise Beetles,’ are well represented in East Africa, and although the species are not as fine as those of South America, some very gorgeous forms occur. The genus Aspidimorpha is perhaps the most extensive in this country, and several species are recorded by L. Ganglbauer (‘ Insekten aus Deutsch- Ostafrika Kol.,’ p. 25) from Tangan- yika. The Nairobi Museum possesses one or two fine species from Uganda, and Gahan (op. cit., pp. 224 and 464) records further interesting forms from the same country. The larvss and pupae of the Cassidince are some of the most wonderful of Coleopterous forms. The larvae have the peculiar habit of covering themselves with their excrement ; this is not free as in the Criocerince, but held firmly by a forked appendage arising from the posterior extremity of the abdomen. The excrement can in some species be raised and feebly waved with a vertical motion, perhaps with the intention of frightening its enemies. While recently collecting on the shores of Lake Victoria, at Kisumu, I came across a small patch of arid ground on which were growing some small shrubs with broad, thick, light- green leaves.1 On examining these plants I noticed a species of Aspidimorpha (?) in all stages of its development ; the most minute larvae seen were entirely of a bright yellow colour, with a small portion of excrement on the dorsal surface, which, as soon as I advanced my hand, the insect waved slowly in a vertical plane. Further advanced larvae had, naturally, a larger piece of excrement which assumed a definite pattern, and the bright yellow of the body had given place to a darker brown. The pupae were also situated on the leaves, and bore no resemblance to an insect : they appeared as merely dry spots of excrement, dark grey in colour, only the whole formed into a fantastic pattern. The imagines were also present ; they appeared very restless, 1 Probably a species of Solarium, ? 16 ON PHYTOPHAGOUS COLEOPTERA and took to the wing at the least opportunity. They were bright little oblong-ovate insects, the elytra being decorated with red spots surrounded by black rings. Conclusion This concludes a very brief survey of the Coleopterous family Chrysomelidce. Our knowledge of the group is as yet so little advanced that any further details with reference to distribu- tion, etc., are impossible. Perhaps it will not be correct to conclude this paper with- out a few words upon the subjects of mimicry and ‘ warning coloration,’ which seem to so agitate the scientific world at the present time. It is a well-known fact that the Coccinellidce or ‘ Ladybirds ’ are furnished with a very conspicuous scheme of coloration — pro exemplo, bright elytra often adorned with striking spots and stripes. It has, I believe, been proved that the Coccinellidce are decidedly distasteful to birds or other animals, in the same way that Acraeine butterflies are ignored after a primary taste. In the case of the Coccinellidce our knowledge is perhaps a little more definite : anyone who is accustomed to handling the beetles knows that very often the insect exudes a yellowish fluid from between the bases of the pronotum and elytra. Exudations of this kind have been definitely proved to be distasteful to other animals (notably in the large Orthoptera and ‘ ground- beetles ’ ( Carabidce )). Certain Chrysomelince of the genera Chrysomela, Doryphora, and others are coloured in a very conspicuous manner, such as spots and stripes in the same way as the Coccinellidce ; in many cases Chrysomelince marked in this way can be separated from the Coccinellidce only by a careful examination of the legs and antennae. Therefore it is not difficult to imagine that marauding enemies are also mistaken, and, in consequence, the innocent Chrysomelince are left quietly alone, free from the horrible prospect of sudden death ! Therefore, according to Professor Poulton and other advocates of the theory, the Chrysomelince mimic the Coccinellidce for the sake of preserva- tion, and adopt the ‘ warning coloration ’ of the latter family. We do not wish to discuss the validity or otherwise of this OF THE FAMILY CHBYSOMELIDJE IT interesting question, but will refer our readers to the writings of Poulton, Marshall, Beddard, and particularly to Wallace’s chapters in * Darwinism.’ I would like to mention one adverse but interesting fact with reference to this theory, which is recorded by W. L. McAtee in a paper written in 1912.1 A specimen of the Chrysomeline, Diabrotica 12- punctata, a very conspicuous beetle, black with yellow bands, was accepted by a Blue Jay ( Cyanocitta cristata), whereas a sombre-coloured Carabid, Scarites suhterraneus, was rejected ! In extenuation of the inadequacy of the present paper I would mention the very small amount of material that I have been able to examine, and the paucity of the literature to Vhich I have had access. However, I hope that the paper will be of some small assistance to those who, stranded in the ‘ wilds ’ of Africa, may desire to take up the study of this fascinating group of beetles. Those who in studjdng Coleoptera find delight and solace are well entitled to echo the words : — ‘ 0 wunderschon ist Gottes Erde Und wert, darauf vergniigt zu sein.’ Atjlmann, Dr. G. . Chapuis Fowler, Rev. W. W. Gahan, Dr. C. J. . Ganglbauer, L. Jacoby, M. . Kolbe . Perris . Sharp, Dr. D. Mattlik, S. A. McAtee, W. L. Wallace, A. R. Weise . BIBLIOGRAPHY Die Fauna der deutschen Kolonien , Reihe V, Heft 2 : ‘ Die Schadlinge des Kaffees.’ Genres des CoUopteres (Suites a Buffon), X, 1874. Fauna of British India, General Introduction. ‘ Coleoptera.’ in Johnston’s Uganda Protectorate, Yol. I., Appendix. ‘ Coleoptera.’ ‘ Zoological Results of Expedition to Ruwenzori,* Trans. Zool. Soc :, Vol. XIX, pt. ii. Insekten aus Deutsch-Ostafrika : II, * Coleoptera.’ Fauna of British India : ‘ Chrysomelidae ’ (portion). Deutsch-Ostafrika : Thierreich. Ann. Soc. Li6ge, X, 1855. Cambridge Natural History, Vol. VI. Fauna of British India : ‘ Hispinse and Cassidinse.’ * The Experimental Method of Testing the Efficiency of Warning Coloration in Protecting Animals from their Enemies,’ Proc. Acad. Nat. Sci. Philadelphia, Vol. LXIV. Darwinism. Naturg. Ins. Deutsch., VI. 1 Proc. Acad. Nat. Sci. Philadelphia , Vol. LXIV, pt. ii, p. 281 et seq. 18 NOTES ON CEETAIN COLOUR NOTES ON CERTAIN COLOUR PATTERNS IN LYCMtiUDM By Y. G. L. Van Someren There has always been a certain amount of speculation as to the use or otherwise of certain colours and the distribution of them in Lepidoptera, particularly in Rhopalocera. So-called ‘ mimicry ’ has its staunch supporters, and there appear to be considerable grounds for the various theories put forward. Little, however, in comparison, has been written regarding the peculiar shape of certain species of Rhopalocera, and this is a subject worthy of attention. Certain lepidopterists have drawn attention to the curious shape of the anal angle in the wings of certain Lyccenidce, and have put forward ingenious theories as to the uses of such peculiar formation and appendages, combined with the brilliant spots of colour usually associated with them. I pro- pose in these notes to record my observations on this particular subject. One authority has advanced the theory that the brilliantly coloured, rounded appendages, in conjunction with the so- called tails, are in reality ‘ false heads,’ with the attendant eyes and antennae, and, by virtue of their shape and colour, are a means of protecting the life of the insect against such natural enemies as lizards. This theory is very pretty and attractive, but assumes a fairly high special development on the part of the insect, and a low intelligence on the part of the lizard. To my mind a com- promise appears to offer the more reasonable explanation. These appendages, coloured as they are, certainly are to the human eye objects of attraction ; and, assuming that they appeal to the lizard in the same way, may be termed ‘ spots or areas of primary attraction.’ I refer in the first instance to the markings on the underside. A glance at the accompanying plate will at once show that all these insects have been attacked, in some cases more than once, in the same area, namely, the rear. We can explain this in three ways — first, by applying the [ To face p. 18. PATTERNS IN LYCiENIDiE 19 theory of the false head, and assuming that the lizard, keen on capturing its prey, attacked the apparently most vital spot, namely, the false head ; or, secondly, by the compromise theory of areas of most attractability ; or, thirdly and most likely, by ascribing to the lizard a certain and by no means unlikely amount of intelligence, and saying that the lizard attacked the insect in its ‘ blind ’ area, namely, the rear. This last explanation appears simple and the most likely, until we come to study the actual specimens attacked. It was my good fortune in July 1920 to find a small flowering shrub growing against a pergola constructed of rough branches, the former being most attractive to the ‘ Blues ’ figured, and the latter the home of numerous wall lizards. My attention was first drawn to this bush by noting that the butterflies were never still for any length of time, although feeding and sunning themselves ; this behaviour being quite unusual, in my experience, in the species under consideration. This strange action led me to investigate the cause, which proved to be the repeated attacks on the part of the lizards. Having heard of the theories mentioned at the beginning of these notes, I determined to try to prove or disprove them by personal observation. I accordingly spent several hours at the bush, and paid particular attention to the position of the attackers and the butterflies attacked. Every attack was made from behind, and on no occasion was a butterfly taken from any position other than the rear. Now, studying the plate, it will be seen that all those in column B have the excised portion in the same area, and symmetrical in both wings, indicating that the wings were closed, and further, in No. 1, that the attacker was below and behind ; while in No. 7 a double attack has been made — the first from directly behind, and the other from above and behind. In some cases both eye- spots have been removed, in others only one. In column C the excision has not been symmetrical in both wings, indicating that the wings were not tightly closed but slightly opened, and further, we can see the side of attack 20 COLOUR PATTERNS IN LYCiENIDiE well exemplified : in Nos. 1 and 2 the attack has been made from behind and on the right ; in Nos. 8, 4, and 5, from the left and behind, each victim having suffered from more than one attack. In making the sudden dart, the lizard twisted his head to one side. It was only when the grip included part of the body that the catch was successful. Another contributory factor determining the position and Sketch showing Relative Position op Excised Areas according to Position of Attacker. 1. Attacker above and behind removes upper eye-spot and tail. 2. Attacker directly behind removes a portion of both eye-spots. 3. Attacker below and behind removes under eye-spot and tail. shape of the excised portion is the habit which some of these species have of rolling the hind wings — that is, moving them up and down in a vertical position when still closed. In the specimens taken, the excised areas are the same shape but not in the same position on both wings. Although on several occasions the tip of the fore wing was the nearest point to the lizard, no attempt was made to secure the victim. This would, then, appear to argue against haphazard attack, and lend support to the theory of selective position ; and so we come again to the point from which we started. SOME NOTES ON THE WASANYE 21 I would now mention that on a few occasions one wing only was attacked, and this at times when the butterfly had its wings fairly widely open, thus hiding from view the eye-spots on the underside, but incidentally laying open to view the very much more vivid colouring on the upper side of the anal angle, which was less like a ‘ head with eyes,’ lending support to the theory of attraction by virtue of colour, not shape, or to the simple explanation that attack from behind is safer and more often successful. Brilliant splashes of colour on insects and other creatures have sometimes been interpreted as being of use as danger signals or warnings, but such cannot be the casein this instance, as no warning is apparently heeded by the lizards — rather the contrary. SOME NOTES ON THE WASANYE By Arthur M. Champion This hunting tribe cannot be said to inhabit any particular area, but may be met with from Kipini to Gazi, from Takaungu to Yoi. I recently had an opportunity of visiting a settlement of these people some thirty miles west of Mangea Hill. The place was called Mlango Moro, but there is, I am informed, another settlement a day’s march farther west, called Mtanyango. The tribe call themselves * Wat,’ but are spoken of by the Wanyika as the Alangulo. The local Elder at Mlango Moro is called Kalime Dida, but the settlement seem to regard one Dede who lives at Warumbe Forfa (about an hour and a half S.E. of Shakahola) as their chief. I found two villages, one of which had seven circular huts, and the total population of the settlement may have been twenty-five all told. One hut was much bigger than any of the others, being 15 feet in diameter, and, I should judge, 10 or 12 feet in height. It was finished off at the top very neatly in the form of a little ornamental point. Others were very roughly put together. I measured one of what I considered average size : it measured 9 feet in diameter and 5 feet in 22 SOME NOTES ON THE WASANYE height. One was, therefore, forced to remain in a crouching position when inside. There is no centre pole or any other Sanya Hut. support. Saplings are put into the ground in a circle, and bent inwards till they meet in the centre, where they are tied together. Horizontal saplings are then bound on to these from top to bottom. On top of this grass is thrown ; only in the case of this one big hut have I ever seen any attempt at thatching. The shape of the hut is that of an inverted pudding basin. The door is 2 feet wide and 2 feet 6 inches in height. It is SOME NOTES ON THE WASANYE 28 Binding. closed by a grass screen. In every hut I found the grass which the occupant used as a bed on the left, and the fire on the right. This settlement had some shambas, and some had built small stoves in Giryama fashion, which were placed on posts over the fire. The doors of the huts all faced roughly east. The inhabitants had, unfortunately, gone on a hunting expedition to a place called Ariba Kitengo. Their grain was all finished, and want of food had driven them in search also of the berries of the Mnago tree. This is a tree of medium size, with small rich green leaves grow- ing at the end of each twig in a bunch. The fruit is yellow when ripe, and contains a white juice. Personally I found it very un- palatable, but I am assured that the Alangulo like the fruit so much that they strip a tree at once when found. A bow was measured and found to be 5 feet 6 inches in length, and the accompanying arrows 2 feet 11 inches in length. They were poisoned, and fitted with an iron head of a type known amongst both Alangulo and Giryama as 4 Tali/ The head and poison, which extended five inches up the shaft, was wrapped up in a strip of thin hide. The feathers used were very stiff, and were probably those of a vulture. The feathered end of the shaft was dyed red. The Tali head is very thick and strong, and is used for shooting big game, including elephant. The poison is a thick black substance of the consistency of treacle, and made from a tree called Mutsungu by the Giryama, and Hadda by the Alangulo. The branches are cut into pieces about a foot in length, and are afterwards again cut up into smaller pieces, bound together, and boiled in water for a day. Some wood of the Madiga tree is also added. A rat called Pinji is also put into the Tali” Arrow, Actual Size. 24 EEPOET ON THE BAJUN ISLANDS mixture, as it is believed that the wounded animal will not then be able to cross a path without falling dead. Some black substance found in the liver of a crocodile is finally added, as it is believed that by this means the wounded animal will at once fall dead if he should stop to drink water by the way. A mysterious hidden force seems to be recognised, and is called ‘ Wak,’ the same word being used by the Galla and the Duruma. The word is not used by the Giryama, who use ‘ Mulungu ' ; Mulunguni denoting the heavens. The pottery found was all in the Giryama style. A honey barrel, which was beautifully fashioned, was found to be without mark of ownership. A small wooden drum with bottom and cover made of skin is a universal receptacle of the Alangulo for all kinds of food, and is carried by means of a strip of hide passing over the forehead. These are similar in appearance to the Kithembi of the Akamba. The crops in the neighbourhood looked at least as flourishing as those of the Agiryama. The Alangulo in the neighbourhood of Mlango Moro, where I camped, seemed very shy, and those whom I met invariably fled into the bush. It is hoped next time, through the medium of some friendly Giryama, to establish better relations, and obtain some more information about these interesting people. EEPOET ON THE BAJUN ISLANDS By J. T. Juxon Barton I. People The Bajun (Ar. Ba-gun, a white tribe), Wa-Gunya (Ki- Swahili, Ku-Gawanya, to divide), i.e., a fractious people, a term of reproach applied by the Southern Wa- Swahili to the Northern and by the Northern to the Southern, or Wa-Tikuu (Ki- Swahili, contracted from nt'i kuu, the mainland), are said to represent the oldest form of civilisation on the coast ; their language, the most archaic form of Swahili. REPORT ON THE BAJUN ISLANDS 25 They inhabit the islands on the east coast of Africa lying between Lamu and Kismayu. These islands are divided into two groups, the northern group being known as the Dundas Islands. It is submitted that the inhabitants of the northern islands are of a different origin from those of the south. Their origin has been variously stated as Phoenician, Himyaritic, and Hamitic. The fact that coast dwellers of all nations can hardly claim descent from one stock seems to have been lost sight of, and an unreasonable antiquity argued from the ruins on the islands and on the mainland opposite to the islands. Sir Harry H. Johnston, K.C.B., stated that at about the same time as the Bantu race movement, some 3000 years ago, the Arab-Sab&ans came voyaging down the east coast of Africa, until they ultimately settled in the S of ala district south of the Zambesi, leaving as witnesses of their venture the Zimbabwe and other ruins. Phoenicians also explored the east coast, founding stations as far south as Mozambique : one expedition, in the employ of the Egyptian King Necho, is said to have circumnavigated Africa about 600 b.c. Later the pre- Islamic settlements of Arabs from Southern Arabia were revived by militant traders and missionaries of Islam establishing themselves at Mozambique, Kilwa, Zanzibar, Mombasa, and various ports on the Somali coast. A colony of Mohammedan Persians (Shirazi) joined them in the tenth century at Lamu, and Persian as well as Arab influence began to be apparent in the architecture on the east coast. Until the settlement of the coast towns by the Portuguese in the sixteenth century, these Arab states were sparsely colonised by Himyaritic or South Arabian Arabs from the Hadramaut, Yemen, and Aden. A development amongst the Arabs of Muscat drove the Portuguese from that territory, and, following up their success at home, these Arabs attacked them on the east coast of Africa, the Muscat Arab becoming the predominant type. In this connection may perhaps be mentioned the traditional arrival of two hundred and fifty Portuguese at Tula Island, 26 REPOET ON THE BAJUN ISLANDS with an equal number of women who were, so the tradition runs, driven out of Arabia by the Arabs. A Portuguese grave is to be seen to this day on Tula Island. Though immaterial, the higher type of features so noticeable amongst the population of Faza, Patte, and Siu in the Lamu Archipelago, is stated by the Bajuns to indicate European blood ; and in further support of this opinion, the Bajuns of Tula amusingly instance the Faza custom of hanging washing to dry on a line, and taking the clothing down with a tearing motion, instead of laying on the beach with stones as weights, and carefully folding in the native fashion. A rough chronology of the coast would seem to be : b.c. 600. Pharaoh Necho of Egypt sends a Phoenician expedition, which is said to have circumnavigated Africa in three years. a.d. 720. First Islamic settlement. 1497. Vasco da Gama rounds the Cape and visits the towns on the coast. 1584. Portugal is in possession and defeats Turkey, who attempts to wrest from her the Zanzibar coast. 1698. By this date the rising of Arab power of ’Oman has driven Portugal out of all her possessions north of Mozambique. 1752. The Portuguese, having finally lost Mombasa in 1780, recognised the Muscat Imamate of the coast. 1888. The Imperial British East Africa Company receive a charter. 1894. The I.B.E.A. Company is withdrawn, the territory becoming a protectorate. The maps of Africa, according to Herodotus, 450 b.c., and Eratosthenes, 200 b.c., do not extend south below what is now Cape Guardafui. ‘ The Periplus of the Erythrean Sea,’ circa a.d. 80, is a navigation guide of the east coast of Africa to about the latitude of Zanzibar. Ptolemy, in about a.d. 140, marks the coast of Jubaland and Italian Somaliland as simply 4 Barbaria,’ the interior as REPOET ON THE BAJUN ISLANDS 27 ‘ Azania,’ Kismayu 4 Parvum Littus,’ Port Durnford or thereabouts 4 Magnum Littus.’ A1 Idris, in 1154, follows Ptolemy in 4 Barbaria,’ marking islands off the coast. Martin Behaim, in 1492, leaves the coast a blank. Diego Ribero of Seville, in 1529, showing Lamu, Patte, the Bajun Islands, the mouth of Juba River almost accurately, embellishes the coast and interior with drawings of elephants. Pigafetta, in 1591, shows what may be the Tana River, Barkao, the mouth of the Juba, and islands. Jacob van Meurs, in 1668, shows a town at Kismayu called ‘Liongo,’ and marks the vicinity of the Juba River ‘ Barenboa,’ calling an island, with a town on the mainland opposite, 4 Tetile ’ (Tula). H. Moll, in 1710, calls the coast of Jubaland ‘Barra Boa,’ and the interior ‘ Quilimia.’ Smith’s New Map of Africa, 1815, shows a town on the Juba mouth and the country between the Juba and the Tana as ‘ Galla.’ * Liongo ’ was a semi- mythical Swahili hero, vulnerable only in his navel to a copper needle, the subject of many poems, who lived in the neighbourhood of Lamu and who was buried at Ozi. Lamu and Patte are, however, shown in Jacob van Meurs’ map, while Liongo occupies the place of Kismayu. ‘ Barenboa,’ ‘ Barra Boa ’ : the Bajuns, the Gallas, and the Somali use the word ‘ Barobaro ’ to denote an unmarried youth of the warrior class. Possibly also the word may be derived from 4 barra ’ (Ki-Swahili, Arabic, 4 the interior ’). ‘ Quilimia ’ (Ki-Swahili, Kilimia, 4 the Pleiades ’). In attempting to deduce an origin of these people, the Himyaritic element pervades the coast ; to a lesser, much lesser, degree the Persian ; the Portuguese, with the early crusading zeal of Roman Catholicism, are little likely to have mixed their blood, on pain of purgatory. The Persian element persists in a lesser degree, in that this tenth-century settlement of Shirasi adventurers would seem to have definitely limited itself to Lamu, where the prevailing type to this day is in marked distinction from the Bajuns, and it is to be remembered that until, and after, the arrival of the English, internecine war was rife. 28 BEPORT ON THE BAJUN ISLANDS There remains, then, what may perhaps be called the Hamitic theory. This seems to have received little con- sideration, despite the traditions of the Bajuns, and despite the obviously Hamitic features of many of the islanders. In brief, the Bajun tradition is that they came from the north-east and occupied the present Garreh country, north of Dolo ; were driven south-east by the Galla invasion ; settled at Afmadu ; were driven by the Galla to the coast at Kismayu, and thence to seek refuge in the islands. They claim to have dug the so-called wells at Afmadu, and to have possessed camels. A further point in estimating their origin which does not seem to have been mentioned is that the Bantu Nyika (Ki- Swahili, 4 desert ’) tribes (Digo, Duruma, Rabai, Ribe, Kambe, Jibana, Chonyi, Kauma, and Giryama) occupied the Shungwaya or Burkao (Port Durnford) country, and were driven south by the Gallas. These people now occupy the littoral from the Tana River to the, until recently, Anglo-German boundary. The Bantu dialect spoken is akin to Ki-ngozi or Ki-ngovi, the old language upon which modern Ki-Swahili is based. The Persian and Portuguese elements seem justly negli- gible. There then remain the Southern Arabian, the Hamite, and the Bantu as progenitors. (1) The Arab. — The Arab, driven by trade, pestilence, or famine, left his country and established stations along the coast. Were pestilence the reason, the disease would have followed ; were famine, he would not have chosen the arid coral rag of the islands, open to the winds, with an inhospitable mainland, to give him sustenance. The factor was probably trade ; and gold mines were worked near the Zambesi early in the history of man. Moreover, harbours near to food centres were necessary, and he chose Lamu and Mombasa as his home. (2) The Hamite. — The Bajun claims what almost may be called ‘ Somali ' descent. He was driven from Garreh to Afmadu, from Afmadu to Kismayu, and from Kismayu to the islands by the Galla, and the Galla occupied Jubaland until fifty years ago. He states he dug the wells at Afmadu : these wells are almost horizontal caves, not the work of Arab craftsmen. REPORT ON THE BAJUN ISLANDS 29 He did not build with stone at Garreh, nor at Afmadu, nor Kismayu ; but on the islands he built with stone in the Saracenic style — -and work in stone is not learned in ten genera- tions, and now the Arab element has disappeared he no longer uses stone. The ruins on the islands have been stated to be of great age : all the evidence would seem to be to the contrary. The style is Saracenic, which style gave to Europe the battle- ments and portcullis of the medieval castle, and this style has undergone few if any modifications since its inception. The material used was coral rag and lime, and one has not to go far afield to see the result of but a year’s neglect on such buildings on less exposed sites. The people of Burkao (Port Durnford) claim kinship with the Rendile, and state that when accompanying the late Mr. Reddie, then District Officer, Port Durnford, on his journey to Rendile, they found lost relatives and brothers. The Rendile are of ‘ Somali ’ origin. Bwana Hamudi, late Headman at Port Durnford, was of pure Garreh descent. (3) The Bantu — The place of origin of the Nyika tribe is the Jubaland littoral. Odd survivors owning stock as Somalis are still to be found, and, still more curiously, Bajuns (Tula Island) have spontaneously stated the former neighbourhood of the Wa-Nyika. The Wa-Nyika were possibly agriculturists in the fertile watered valley between the Anole and Burkao creeks, now the Herti-Magharbul grazing. They were obviously hunters, nomads if necessary , undoubtedly subject to slave raids, equally undoubtedly to Mohammedan concubinage ; and harassed from the coast by slavers, from the interior by the Galla, they sought refuge from their oppressors in compara- tively recent times, and crossed the river Tana, as did the Galla in their turn when harried by the Somali. If this is, then, the parentage of the Bajun it is submitted that their story should run as follows : The great migration of Hamites, increasingly obvious in the southern movement of the Somali tribes of the present day, began in the mother country of middle Egypt and Arabia. 80 REPOET ON THE BAJUN ISLANDS One branch, the Gallas, reaching Abyssinia, passing, driving before it all weaker tribes, mingling with its captives, drove the so-called Bajun (nomads also) from well to well until a sure refuge was found on the islands. The coast and hinterland was occupied by the Nyika tribes, and with these the islanders mixed : the struggle with the Gallas still continued, the islander and the Bantu being attacked as the former tried to regain and the latter to retain his hold upon the mainland. And so the struggle continued until and after the coming of the Arab from the south. The Arab came as a trader in ivory and slaves, and by barter with the Galla and the help of the Bajun, secured both the ivory and the slaves. Mixing with the Bajun and Bantu, he built houses and mosques 1 where no real prosperity promised (for the supply of ivory and humanity could not last, since both beast and man run from fear), and where but the scantiest crops could be grown, so that he brought grain from Lamu and the south in dhows. He was at his greatest prosperity in the eighteenth and early nineteenth century, when even the Galla, pressed by famine, sold his children, and so until the middle nineteenth century, when the Galla hunter disappeared into the dense Tana bush before the Somali coming by sea and land. With the advent of government, the abolition of slavery and the preservation of ivory, the Arab returns south, leaving his houses, his mosques, and a people of mixed Hamitic, Bantu, and Arab blood using his buildings until the action of the winds and sea crumbled them away, and returning to their previous state of bare sustenance. The Bajuns are light coloured, intelligent, and unwar- like. They are Mohammedans of a devout type, in marked contrast with the Pharisaical Somali. They are miserably poor, extremely thrifty, but spend lavishly when in funds. The average monthly earnings of the Bajun may perhaps reach seven rupees. They have some knowledge of agriculture, and, what is 1 A venerable and ruined mosque, now unused, on Koyama Island shows A.H. the date 1224 a.h. which, by use of the formula : a.h. — 3-jQQ + 621 = a.d., gives the year 1808. BEPORT ON THE BAJUN ISLANDS 81 more important, the will to work : they obtain small crops from the most impossible soil. They are courteous and obliging to strangers, and exceedingly friendly to government. They possess a certain amount of low cunning, which is naturally more obvious in the markedly Hamitic type, but are otherwise honest in their dealings. They borrow extensively from Indian (Kismayu) traders, loans sometimes reaching Rs. 4000, which is evidence of their integrity or of an ivory trade, for they can give no security. Their houses are built of wattle and daub, the palm for the roof coming from Lamu. Shelves and crude ornamental devices are sometimes contrived in the walls of the rooms. The houses are well-built. Bajuns are unable to build in stone, and probably they never knew the craft. The wells are all of some age. The upanga is carried by the man, and is often ornamented with silver ; this sword is a cutlass, and different from the Arab weapon. Their dances are the usual advancing lines of men and girls ; married women should not dance. Two dances are performed exclusively by men, the one a sword-dance, the dancers prancing around one another, cutting at head and foot, a cloth being held in the free hand as a shield with sometimes another cloth in the teeth ; the other is the old English quarter- staff, save that damage is rarely done. To this, drums and brass trays are beaten. The former is the Hazua, the latte^ the Kirimbizi. Women and girls have also dances, no man being present. This is the Msondo, or school of love, presided over by a Somo, an adept in the art of attraction, the pupil being called Mwari. The original purpose of the Msondo was undoubtedly to prepare girls for the housewife’s duties, the present practice is best imagined. A polite custom of the islands dissuades a man returning at night from landing and entering his house. The women possess long hair which they wear in a coif, the ears are pierced for Arab ear-rings, the lobes often distended for the introduction of coloured paper rolls ; the use of ornaments is lavish. Both sexes chew snuff mixed with 82 REPORT ON THE BAJUN ISLANDS magadi (soda). Comely women are confined to their houses ; this is by no means general, and the shapeless blue buibui is not worn. The threefold divorce is rarely used, the first formula being regarded as sufficient. Fish is the staple diet : there are, however, clans who eat no fish. Most shell-fish, other than oysters, are prized ; both men and women string cowries for the Indian market. Corn is sold at 12 lb. (two pishis) for the rupee. Seaweed is eaten. Buni (unhusked coffee) is as necessary a drug to the Bajun as to the Somali and Galla. A few goats and cattle are to be found on the islands. Fishing dhows are made of Msindi wood, which has the disadvantage of not rising to the surface after immersion, the planks being bound with fibre rope and rendered seaworthy with shark fat. Very few large dhows are to be seen, and these represent bad debts of Indian merchants in Kismayu. The coastal carrying trade will be in time entirely in Indian hands. Small white pennons are flown on the bowsprit to propitiate the elements. A person on his first voyage must tie some article of clothing to the mast until the journey’s end, and redeem it at a price. The boating songs are exceedingly tuneful, and would be worth collection. The method of catching the turtle by the Koyama people is worth recording. The taza, a slender sucking fish, about two feet or so in length, is caught. When a shoal of turtles (kasa) is seen, this fish is thrown into the water attached to a line. The taza almost 4 hunts ’ his enormous victim, fastens himself to the under portion of the throat, sucking its blood, and the turtle is drawn towards the boat, from which the fisherman dives to fasten an iron ring, with a rope attached, to the turtle’s flapper. This mode of fishing would seem to be unique. The Bajun is a dying race : with some help and fosterage from Government they might be saved : their economic value is undoubtedly greater than that of the Somali, and their loyalty is not in question. REPOET ON THE BAJUN ISLANDS 38 II. The Islands (1) Koyama Island. — This island is situated some 21 J miles down the coast from Kismayu, its greatest length being 3J miles, its breadth 2 miles. There are two villages on the island, the village on the shore being known as Koyama, the village on the hill a mile or so away, Koyamani. The inhabitants of this island are markedly Hamitic in features. They regard themselves as a distinct tribe, and seem the most feeble and dispirited of the islanders. The island possesses about four mosques in varying states of repair ; a venerable ruin gives the date a.h. 1224= a.d. 1808. Tombs of a more intricate design than those of other islands are to be seen on the foreshore. China plates are cemented into the mosque walls around the Kibla. A cloth slightly different from that of Benadir is still made. Coco-nuts, tobacco, and some grain is grown. The people possess a few sheep and goats. The turtle is esteemed as a delicacy and caught in a manner already described. The wells are extremely brackish. Some fifty years ago, when Jubaland was in the possession of the Gallas (an old man states), two boats’ crews, fifteen souls in all, from one of Her Majesty’s ships arrived, the vessel having foundered. These survivors were fed by the inhabitants, giving written bills in exchange for meat and grain : they camped on the highest point and remained two months when a ship was sighted which rescued them. Their debts were paid in full, and the late Headman possessed a letter of commendation from a shipwrecked officer. On one occasion Somali traders from the Benadir had put into Tula Island and captured four children : all the slavers were killed, and the Bajuns returned by the English. Bajun tradition states that the islands were populated by a race crossing from the mainland at Koyama, each section cutting its mark on a baobab tree opposite the island. These marks are very like the cattle and other brands of known Hamit es. 84 REPORT ON THE BAJUN ISLANDS The life of the baobab may exceed a thousand years : the tree in question is of great age. (2) Ngumi Island. — -This island is close to Koyama, its greatest length being 4| miles and breadth 1 mile. It is uninhabited save by two or three fishermen. Water is obtained from Koyama. The island possesses considerable ruins of a walled-in village. It is of no interest save with reference to the legend associated with the mosque. The inhabitants traded in ivory and slaves with a white race : the tusks were packed in the long matting-bags used for grain. On one occasion a cargo was taken, but the bags contained but one tusk each and were packed with camel and other bones. The traders sailed, and on their return bombarded the village, destroying all the inhabitants. One woman ran for sanctuary to the mosque, praying that she might be saved from the raiders ; her answer was her transformation into stone. The stone has now disappeared, but is stated to have stood near the Kibla : it has been reported as still existent, but its whereabouts kept secret. From this legend Astarte worship has been argued, somewhat unwarrantably. Men desirous of children burn incense before the ruined shrine. The Bajuns are unwilling to clean the old stone wells in that each well demands a life. (8) Chovai Island. — Chovai is the correct Ki-Tikuu name for this island, which is called Towala by the Arabs. The island is the most populous of the Dundas group. It possesses very few stone ruins. The existing mosques have been repaired recently. Some attempt at agriculture is made on the mainland. Sheep and goats are grazed. The water is moderate. The inhabitants seem the most wealthy of the islanders, are markedly Hamitic, and are divided amongst themselves. Chovai creek on the mainland is a harbour for native craft ; the creek, penetrating some miles inland, is fringed with mangroves. Ivory is probably smuggled. REPOET ON THE BAJUN ISLANDS 35 (4) Tula Island. — -This island is second in point of popu- lation : it is 57 miles from Kismayu, is I J miles in breadth, 3J miles in length. The water is the sweetest on the islands. There are two villages on this island, the one Tula, the other a mile or so distant, M’doa. Coco-nuts grow extremely well, and with some encourage- ment would become profitable. The island possesses a large tomb, said to be Portuguese, made with a cement the secret of which has been lost. The decorations are not Islamic. Legend has it that five hundred Portuguese men and women landed on the island, having been driven out of Arabia : more probably they were expelled from Mombasa or Lamu by the Arabs in the eighteenth century. A house, the interior decorations of which are singularly delicate, is shown as of great age. It was built with slave labour by the great-aunt of a living inhabitant. This woman was of the Defarad clan of the Tunni tribe and the Barawa people of the Benadir coast. The Tunni and Rehawen fought with the Somalis at Giumbo and were driven north. The three stone mosques are in good repair : the interiors are decorated with plates : in many cases the design of this china is modern. On the mainland a few hundred yards from the shore, at Kituni, is the ruin of a considerable mosque, the interior of which is decorated with the 114 Suras of the Koran carved in the plaster. On the right-hand bank, at the mouth of the Anole Creek, are more ruins, likewise on the left-hand side at Kudai. It is submitted that these mainland settlements were in their conception custom-houses, and, as relations with the Galla or Wa-Nyika were established, became villages. The custom is well known ; the grain was placed some distance away, the tusk was brought : if either the price or the article did not suffice, the dissatisfied warned away the other by hostile demonstration. Manifestly the islander could not barter in safety on his island. (5) Kudai Village. — This is a small settlement on the mouth of the Anole Creek, inhabited by a few Bajuns, who eke 36 . REPORT ON THE BAJUN ISLANDS out a wretched living by fishing and attempts to grow crops. It is marked ‘ Kituni ’ on the latest maps. (6) Anole Village. — This is a small village of natives of various Bantu tribes who have moved from place to place until they have reached the head of Anole Creek, some twenty-five to thirty miles from the sea. Their condition is miserable, and they are in constant dread of raids by Rer Abdulla youths aspiring to the white feather. The soil round this village is suitable for shambas on an extensive scale ; corn, sim-sim, manico ( muhogo ), and tobacco are grown. The neighbourhood is the Jilal grazing of the Herti and Magharbul Somalis, with whom their relations are friendly. The water, from shallow wells, is abundant, clear, and sweet. This stretch of fertile country extends for a considerable distance, as far as Busbushli on the Burkao Creek. A road is said to have been cut by Mr. Haywood, District Commissioner, from the head of Anole Creek to Kudai. It is not visible, and the camel track followed through thick bush is a nine to ten hours’ march. (European.) (7) Tosha Village. — This is a small and insignificant village some two miles from Kudai on the mainland. The water is moderately good. (8) Sheh Village. — -This village, some five miles south of Tosha on the mainland, has been abandoned. No water is to be found, and mosquitoes with sand-flies in the mangroves render camping impossible. (9) Port Durnford Village. — This is marked as Burkao on maps ; it is called ‘ Birikavo ’ by the Bajuns. Formerly a Government station was maintained, and a considerable village was built, trade being with the Abdulla and Magharbul Somalis. It has since been abandoned. There are ruins of an old village at Port Durnford and of a pier. The water is impossible even for native consumption, and for Europeans the rain-tanks must be supplemented with water brought in dhows from Busbushli, some twenty miles up the creek. REPORT ON THE BAJUN ISLANDS 37 The harbour is suitable for large vessels ; boats drawing four to five feet can enter the creek some nineteen miles, which is navigable a further sixteen miles, as far as Wayore, by craft drawing nine inches or so. Busbushli, where a large supply of fresh water is to be found, is the grazing of the Rer Abdulla section of the Ogaden Somalis during the month of January. The Mohamed Zubeir Ogadens claim a vague suzerainty over this section. Busbushli would seem a natural basis for operations against the Rer Abdulla. The Administration house at Port Durnford is a large and commodious building, erected by the late Mr. Reddie, when District Officer. It is now sadly in need of repair in every particular. The roof beams have fallen in some places, the windows and doors are broken, the floor has cracked, the verandah is a mass of rubble. The house has been in the occupation of a Police Post. The inhabitants of Port Durnford wish to move to Ras Mnarani, some six hours distant down the coast, owing to the suitability of that place for shambas, water and grazing, and the impossibility of the water at Port Durnford. (10) Ras Mnarani — This can scarcely be called a village as yet. The inhabitants of Port Durnford, however, are desirous of moving thither, where water, grazing and some cultivation is possible. Ras Mnarani is six hours’ march from Port Durnford. III. The Coast The coast-line of Jubaland from the river Juba to Ras Kiambone is about 120 miles long, a practically continuous line of sand-hills. There are three tidal creeks — -Chovai, Anole, and Burkao. The creeks are fringed with mangroves, mwea, mkandaa and mutu trees, all of some commercial value : — (1) Chovai Creek. — This creek lies opposite to Chovai Island, and is suitable for coasting craft. 38 REPORT ON THE BAJUN ISLANDS (2) Anole Creek. — This creek is suitable for boats drawing three to four feet for about five miles. Canoes and small fishing-boats can be punted or sailed for this distance, and can proceed a further twenty to twenty-five miles in the dry season. The journey to Anole village at the head of the creek should not be attempted by Europeans by land or water in one day. (3) Burkao Creek. — Port Durnford, a sub- port, is a sheltered anchorage of about six fathoms. A steamboat has ascended the creek for about twenty miles in the dry season to Bus- bushli. Dhows drawing four to five feet can reach Busbushli at any time, and canoes, Wayore, a further sixteen miles. The rumours of tsetse-fly would seem to be an obstructive Somali (Herti) myth. This tribe grazes its cattle along the coast-line to Port Durnford, and what is more, along the Chovai and Anole creeks, the rank vegetation of which should harbour all manner of insects. IV. Communications (1) By Sea. — Journeys by sea are naturally subject to the N.E. and S.E. monsoons. The former blows roughly from April to August, the latter from September to March. During both monsoons the current is stronger near the land ; despite this, the more speedy mode of travel against the monsoon would seem to be poling along the shore. The time taken between island and island is a matter of circumstance. (2) By Land. — The owners of boats on each island take it in turn to keep a ten days’ watch. A fire is lit on the mainland, and travellers are ferried across to the island, where water can be obtained. Chovai Creek has no ferry. Y. Trade, Products, etc. The Bajuns would seem to do a great deal of the coastal carrying trade. In reality this business is rapidly becoming a purely Indian concern. NOTES ON EAST AFRICAN MAMMALIA Fishing is engaged in mainly as a means of livelihood. Cowries and dried sharks’ flesh are bought by Kismayu traders. Pearling might become profitable, but the Bajuns do not possess the power of deep diving. Coarse ‘ carriage ’ sponges are to be found. Ambergris and turtle shell are rarities. The question of grain for food deserves special consideration. The Juba river strip is in the hands of Arabs financed by Indians : the Bajuns on the islands consequently starve. I he coral rag of the islands is not fit for agriculture : an attempt is made to grow crops on the mainland a few yards from the shore : this is but little better. The only arable land adjoining would seem to he the almost well- watered valley or 4 tug ’ stretching from Mtoni at the head of Anole Creek to Busbushli, twenty miles up the Birikou Creek. The Chore or Joreh country is also watered. Coco-nuts grow well on Tula Island, and would do well at Kudai and Port Durnford. Trees of commercial value are to be found at Chovai, Anole, and Birikou creeks. These are 4 borities ’ ; 4 mweah/ small borities used in the construction of native huts ; 4 mkandieh/ a wood used for burning lime ; 4 mutu,’ a tree used for making native beds, chairs, etc., and burning lime. Wild rubber is to be found in the vicinity of Port Durnford. NOTES ON EAST AFRICAN MAMMALIA (OTHER THAN HORNED UNGULATES) COLLECTED OR KEPT IN CAPTIVITY 1915-1919. PART II. By Arthur Loveridge One day I tossed the still warm body of a newly-killed rat to her to see what she would do. First seizing the tail in her mouth she defied anyone to take it from her, then she subjected it to a critical examination, opening the mouth and looking in- side, licked the blood from its nose, examined its fur minutely 40 NOTES ON EAST AFRICAN MAMMALIA and appeared to capture and eat some fleas which she found there. After this she climbed to her box upon which she sat, and placing the rat between her knees nursed it in a most comical way. She clung to this rat for two days, defeating every effort to deprive her of it ; by the end of this time all the fur was off, the carcase was positively green and liquid, and as she held it in her mouth the flies buzzed all about her. On the third day she gnawed through the telephone wire with which she was attached to her pole, and escaped. I recaught her the same afternoon and fixed her with a light chain ; after several attempts on this, she settled down and became very docile and affectionate. Alas ! Two months later she died. One morning there were signs that she had had a bad attack of diarrhoea during the night ; in the morn- ing she was lying on her side toying with bits of gravel. I immediately let her loose and she took a little milk and sugar, she then went to the wash-basin in which she stood her fore paws and drank deeply. I lifted her on to the bed and she bit me. I made her comfortable but she arose and went to the other monkey, throwing herself down beside him in a very exhausted manner. C. rufilatus showed its sympathy by trying to clean Jenny’s fur. At 7 a.m. she went towards the bush where my boy found her about 9 a.m. and brought her back, whereupon she bit him. One would have supposed by her appearance that she was too sick to walk, but at 2 p.m. she went off again and hoping she might find something in the way of medicine for her- self I said she was to be left alone. At 4 p.m. she walked into camp very slowly and on reaching the first hut she fell down in the shade in the most abandoned manner. Salimu brought her up and laid her on the bed looking most humanly forlorn. Almost immediately, however, she sprang up, clam- bered up a strand of wire with agility, hurried across the top of the python’s cage, descended the wire netting on the further side and ascended to her own box. All this was done with such agility that I remarked to the boy that I feared she was not so ill as she looked, but native-like was making the most of it. How grossly I had misjudged her was revealed next COLLECTED OR KEPT IN CAPTIVITY 41 morning, when her dead body was found in the mouth of a drain or waterway which led from the python’s cage. Whether she had gone there seeking water, or had crept in with the idea of hiding away, it would be impossible to say. Colobus abyssinicus caudatus, Thos. — A troop of the beau- tiful White- tailed Guerezas were seen in the West Kenia Forest, where they went springing and swinging through the tree tops ; their arched tails with long hanging fur looked very fine. Professor Gregory, in his work ‘ The Great Rift Valley,’ says that far from making them conspicuous, as one might suppose, the long hanging fur has the effect of making them appear like one of the great tufts of lichen ( TJsnea ) with which the trees are draped. The only specimen the writer has seen in captivity was captured in a village near Kabete. When I saw it six weeks later the children who had made a pet of it had made it so tame that it would feed from the hand. This animal was very old ; young ones have a little thumb which disappears with advancing years. Papio ibeanus, Thos. — No baboons were ever collected. In the Forest Reserve at Nairobi they were very plentiful. They were very noisy animals, uttering a deep bass semi- bark which has, I believe, been likened to ‘ chaoma.’ If one remains quiet in the forest, they come within about fifty yards and look down from amongst the foliage ; as soon as one stirs, away they go crashing from tree to tree, setting all the branches swaying. One morning my attention was drawn to a party of them on the Limoru road, near 3rd Avenue. Though it was only 8.30 a.m., there was a fair amount of traffic passing along the road. These baboons had come from the forest and were rooting about among the hut3 of a temporary P.W.D. road-makers’ camp. The natives were all away at work, the grass huts were deserted, so the baboons had it all to themselves. One old fellow seemed very busy stuffing handfuls of something into his mouth. Keeping a galvanised- iron shed between us, I walked quietly across to him so that he did not see me until I was within twenty feet. He then looked up, gave a bark, and cantered away like a great dog. He only retired a short way, then swung himself up into a very small tree, where 42 NOTES ON EAST AFRICAN MAMMALIA he joined two others that had escaped my notice. The rest of the troop acted in a similar way instead of making off into the forest. When making camp one stormy evening in the Kedong Valley we heard the familiar bark, and looking up saw one great brute silhouetted against the sky ; he was sitting on a large boulder on the very brink of a two- hundred-foot precipice. At Longido West we were called upon to stand to arms at 2 a.m. one morning (24/11/16), as shots had been heard up the mountain. In the morning it transpired that a troop of baboons, stealing down to the water to drink, had been mistaken for German askaris by the Indian picket ; the latter had fired upon the animals, killing two. Trekking between Arusha and Moshi, in dry, rock- strewn kopje country, several parties of baboons were seen over- turning stones in search of insects which they like. At Kongwa, parties of them raided the mealies in broad day- light. Sentries posted in prominent places kept a good look-out and gave warning of the approach of anyone with a gun. It was intensely amusing (except to the owner of the mealies, I suppose) to watch them making off when thus disturbed. Big and little ones, with an armful of mealies and a mealie or two in their mouths, would lope away on three limbs, and in a few instances on two limbs, having the arms occupied with the mealies. At Dodoma they lived on the kopjes ; on the lower slopes of the Uluguru they might be found any evening, generally rooting about in the natives’ shamhas or among the open bush in the ravines. The largest party ever seen was crossing a plain at West Kenia ; there must have been nearly two hundred of them, and many of the mothers were carrying young ones on their backs. Small Grey Lemur. — When at Msiha River (Shell Camp), I heard that one of the men in the Calcutta Volunteers had a tame lemur. I called to see it. The little creature was not more than eighteen inches from tip of nose to end of tail. This prisoner of war was chained to a sapling with a little belt around its woolly w?aist. It had the distinction of living on army rations, and one of its principal stunts was to get COLLECTED OR KEPT IN CAPTIVITY 43 inside empty two- lb. jam tins, which one would have thought impossible. Once inside it would revolve slowly round and round until the tin was as bright as the day it left the factory. It would then bolt for its tree, and mounting to the topmost branches sit down at leisure to lick the jam off its fur. Galago hindei, Elliot. — The lemurs, known to the SwTahili as komba, are to be heard crying in the trees at Frere Town, Mombasa, almost nightly. Probably they live royally upon the prolific mango crop. They are captured at times by the natives in the following manner. Pombe (native beer) is placed in the trees in the half of a coconut- shell ; the lemurs are fond of this and drink until intoxicated. If the tree is visited early the following morning, the creature is found in a fuddled condition and falls an easy prey, for its judgment in making the prodigious leaps by which it would normally escape fails under these circumstances, and, the creature, if it attempts to jump at all, falls to the ground. A single specimen was obtained some seven miles from Frere Town, where it was found sleeping in thick bush about fifteen feet from the ground. Galago panganiensis, Matsch. — For notes on this species, both in the wild state and captivity, see Journal, No. 16. Pteropodimj Epomophorus crypturus, Peters. — This Fruit Bat was met with at Lumbo, Mozambique, where five specimens were shot one afternoon, hanging singly, not in colonies, in mango trees. They wrere all females, each containing a single foetus. Another shot at the end of September (80/9/18) had a much more developed one. The largest of these bats was 5§ inches in length, with a wing-spread of 2 feet less half an inch. Female, 148, 0, 20, 25, 596. Epomophorus minor, Dobs. — This species was plentiful at Tabora, Morogoro, and Dar-es-Salaam. At the former place they were found in a mango plantation ; at Morogoro hanging in the palms which border the roads, and also in the acacia trees ; at Dar-es-Salaam hundreds of them occupied an old Arab building which was in ruins. It was a wonderful sight 44 NOTES ON EAST AFEICAN MAMMALIA to see these bats hanging by their feet along the mid-ribs of the coconut-palm fronds at Morogoro. In January thirty- eight were counted on a single frond, twelve on another, and many of the other trees were loaded in a similar way. Two years later with two shots I procured twenty-one specimens. In July these creatures seem to go elsewhere, and not one was to be seen ; they had not been molested at all prior to this. These bats have little white shoulder-tufts when mature ; by a curious in-turning of the skin they can conceal them from view. The largest specimens taken were from Morogoro, where two females had a body-length of 5J inches and a wing-spread of 28 inches. Female, 140, 0, 16, 19, 584. Epomojphorus wahlbergi, Sund. — Common at Nairobi and Dar-es-Salaam. At the latter place great numbers of them assembled in the mango trees, and their cries could be heard in the palace grounds all night long. It was by far the largest of the three species obtained, and also the handsomest, the fur being less brown and more mustard-coloured : there was considerable individual variation, however. The largest speci- men was a male from Dar-es-Salaam, measuring 6f inches in body and 24| inches in wing-spread. Male, 160, 0, 22, 25, 290-680. Like E. minor, many specimens were infected with a small red acarine (?) parasite on the borders of the wing membranes. Emballonuridjg Taphozous mauritianus, Geoff. — Found on the trunks of mango trees at Morogoro and on the coconut palms at Dar-es-Salaam. The first specimen was seen on 18/1/17, whilst walking up the long road to Government House, Morogoro. In the native town this road is bordered with shady and generally very dusty mango trees, upon the bark of one of which I noticed something white. Upon closer inspection this proved to be a bat performing its toilet. The colouring of the back fur was fox-grey. The underparts were pure white, and the membranes of the wings so transparent that it had the appearance of a small tern when on the wing GOLLBOTED OR KEPT IN CAPTIVITY 45 in daylight — this illusion was no doubt largely due to the manner of its flight. A closer examination of the other trees proved the bat to be quite common ; a pair would be generally found together clinging upside down to the trunk. As soon as they realise that they have been observed they scramble round the bole of the tree with the agility of a gecko— they almost appear to glide. It is due to their alertness in this respect that I have not discovered them before, though frequently passing along the same road. The only occasion on which they were found in a different situation was when a single pair were seen under the eaves on a rough-cast wall ; in this instance they travelled along the wall and round the corner of the house with the same quick movements as they display on the tree trunks. The largest specimen was a female from Morogoro, 3J inches in length, head and body only, and a wing measurement of 16f inches. Female, 90, 23, 32, 22, 422. Nycterid^j Nycteris cethiojpica luteola, Thos. — A specimen of this bat was smoked out of a drain running beneath a pathway at Frere Town. Nycteris revoili, Robin. — Met with at Morogoro and Mpapua. In the former locality three specimens were captured in an ant-bear hole after digging down for five feet and along for perhaps six. This hole was out on the plain, and the find was interesting as it showed where these creatures put up during the day. The Mpapua specimen was found in a dark room in a house where there were some hundreds of bats. There were patches of a red acarine (?) parasite behind the ears of one of the Morogoro specimens and on the wing of a female close to the body. In this specimen there were two holes in the wing-membrane, close to the parasites, which may have been caused by the host endeavouring with its claws to allay irritation. The largest specimen was a male measuring 2f inches in length and 14| inches across the wings. Male, 70, 56, 12, 32, 175-376. 46 NOTES ON EAST AFRICAN MAMMALIA Megadermidje Lavia frons, Geoff. — At Morogoro and Dar-es-Salaam. In the former locality they were found hanging in pairs, rarely more, in bushes or thickets on the plain. When first seen they appeared to be bright foxy-red in colour, but this impres- sion is false, for it is only the huge ears and wings that are of this hue ; the body is clothed with long, soft, blue-grey fur. They are expert in flitting about in dense thickets, and will not let one approach within ten feet of them. Towards evening they appear to leave the thicket and hang from some spray, exposing themselves to the last rays of the setting sun. At Dar-es-Salaam they hang in the bushes along the sea shore. A male shot at Morogoro on 19/5/17 had five globular growths between skin and flesh on the breast and neck. These were about an eighth of an inch in diameter and came away readily, appearing to be a very thin-skinned sac con- taining aqueous matter. The largest specimen taken was a female, 2§ inches long and 17| inches across the outspread wings. Female, 68, 0, 10, 45, 190-450. RHINOLOPHID2E Bhinolophus hildebrandti , Pet. — Taken at Mpapua and Kongwa in buildings. The pair from the latter locality were the larger, the female measured 2| inches in length and 16f inches across the wings. Female, 4, 42, 18, 29, 190-426. Hipposiderid^j Hipposiderus caffer, Sundev. — A female was taken at Morogoro, 8/1/18. Length 2| inches, across wings 11 J inches. Female, 54, 32, 7, 18, 131-292. Hipposiderus ruber, Noack. — A couple of specimens of this bat were found bottled in a German house at Morogoro. Yespertilionid^j Pipistrellus nanus, Pet. — Some of these small black bats were brought me by a native collector. I think they were found in banana palms. The bodies were no larger COLLECTED OR KEPT IN CAPTIVITY 47 than that of a Death’s Head Hawk Moth. The largest specimen was a female 1| inches long and 9| inches across the wings. Female, 41, 41, 5, 11, 108-238. Scotophilus nigrita dingani, A. Sm. — Only one specimen of this yellowish bat was taken at Dar-es-Salaam, 11/18. Scotophilus viridis , Peters. — A single specimen was taken at Morogoro on 15/9/17. Eptesicus rendalli, Thos. — This species was occasionally seen flitting about in the gloaming at Lumbo. It was, how- ever, far from common, and the only specimen obtained was brought me on 27/9/18. This was a male 2 inches in length, 52, 32, 6, 10, 24. Glauconycteris argentata, Dobs. — This West African bat is considered somewhat rare, and was only met with at Morogoro, where it was certainly very local. They appeared to be confined to three roads — namely, Palm Street, Horne Street, and Station Road. The first time they were seen (16/1/17) I climbed upon a barrel and obtained five with one sweep of a butterfly net. A few months later (6/4/18) I made a close examination of the palm trees in the neighbourhood. On two trees were single female bats, and on a third were sixteen bats on a single palm frond : they cling to the ‘ leaves ’ near the mid-rib in groups, only two to four on each leaf ; they do not hang clear with heads down, but cling to the leaf with their tails towards the mid-rib ; the head of the one nearest the mid-rib rests upon the back of the next bat in front of him. Generally they were assembled upon the lowest branches at a height of 20-25 feet from the ground. By stopping a cart loaded with sacks of mealie and climbing upon it, I was able to come within reach of a group of eighteen, of which I secured ten. The biggest number ever seen on one frond was thirty-two (21/11/18). The largest specimen was a female, 2J inches in length and 12f inches across the wings. Female, 58, 0, 29, 17, 144-324. Molossidje Cheer ephon emini, De Wint. — A single specimen of this bat was collected at Dar-es-Salaam on 7/11/19. There were 48 NOTES ON EAST AFRICAN MAMMALIA large numbers of these bats in the roof of the Kaiserhof Hotel and adjoining buildings. Length, 2§ inches; across wings, 12J inches. Male, 65, 46, 12, 17, 150-818. Cheer ephon limbatus, Peters. — This specimen was very abundant in the neighbourhood of Mombasa, being a perfect pest in some of the houses at Frere Town, where they lived beneath the roof. Considerable variation in colouring was to be seen in the large series of skins collected. The parti- coloured brown and white of breast is most common, but in many specimens the white was almost absent, the darker colour of the flanks impinging upon it. In the young the darker colour was more of a blue-black than brown. In the adults brown of the back fur is liberally sprinkled with white hairs. The largest specimen was a female 2J inches long and 11 J inches across the wings. Female, 58, 84, 5, 16, 188. Soricidje Crocidura fumosa johnstoni, Dollm. — This small shrew was occasionally found when clearing away sisal fences at Morogoro. This sisal harbours much dirt and many small creatures. On one occasion a shrew, only 3 inches in length, was put into a tin with a mouse ( Leggada bella , subsp.) and a gecko (Hemidactylus brooki). On opening the tin a very little while after it was found that the shrew had killed and eaten the mouse except for the feet and a few fragments of fur and skin; the tail of the gecko had also been devoured. Male, 90, 57, 14, 10. Crocidura hirta, Peters. — A single specimen was found bottled in a German house at Morogoro ; after spending four months at Lumbo a specimen was found dead upon the railway line only a day or two before departure, so it can hardly be reckoned as common there. Female, 92, 51, 12, 6. Macroscelid^j Bhynchocyon petersi, Boc. — At Makindu (Shell Camp), 20/7/16, I was brought a large and handsome Elephant Shrew, shot in the bush near by. Female, 270, 213, 83, 32. COLLECTED OR KEPT IN CAPTIVITY 49 Elejphantulus ocularis, sp. nov. Kersh. — This new species of Elephant Shrew was common at Dodoma, though very- difficult to obtain owing to its custom of bolting into the densest thorn-thickets when approached. One of the largest females measured 142, 120, 33, 24. Petrodromus nigriseta, Neum. — Not very common in open bush near Morogoro. A specimen was shot one morning (12/6/17) on a path which was being crossed by a safari of siafu. The stomach of the shrew was full of the ants. It seemed a most extraordinary thing that so timid a creature could capture and eat siafu. Largest specimen taken was a female, 225, 170, 50, 36. Petrodromus rovumce, Thos. — These shrews were heard on several occasions, but not seen for two months after arrival at Lumbo. Local natives were then consulted, and we learnt that the creatures might be captured with comparative ease. Bag- nets are made with fine sisal thread ; the closing thread around the neck is attached to a twig fixed in the ground alongside the path where the bag is set open. A drive is then made by natives pushing their way through the under- growth ; this is sufficient to scare the shrews along their runs. The action of the shrews bolting into the bag closes the neck of the bag so that the animal is netted uninjured and is picked up immediately by the following native, who, liberating it from the bag, transfers it to a sack. On arrival in camp they were chloroformed. On examining their stomachs only ants -were found ; but at 7 p.m. one evening I saw a young one which had been liberated in my boma pounce upon a large burrowing cricket, with which it ran under the bed. Its actions were as rapid as those of a cat under similar circumstances. Feeding them in captivity was not a difficult matter, as the place swarmed with ants : a piece of bad meat was put in the shrew’s cage ; in a very short while a steady stream of ants was going to and from this bait ; these were licked up by the shrew as required. Both old and young drank diluted Ideal milk, though one could see that they were unaccustomed to drinking by the awkward biting way they went about it. Whilst drinking the nose was held up at an obtuse angle. How the E 50 NOTES ON EAST AFRICAN MAMMALIA animals subsist, here without water is hard to say ; for a month past there had been no rain, the days glaringly hot and the nights close without a trace of dew except on two nights. Only one young one is produced at birth, and this takes place during the month of October. Two young males, born on the seventeenth of the month, measured 3 inches in head and body and 3J inches respectively ; a foetal female on the same date measured 2-§ inches. A live young one brought to me on the twenty-first was 3| inches, whilst another found on the twenty- second was much the same — both of these were running about actively and difficult to catch. The largest male and female measured were : male, 190, 170, 48, 82 ; female, 195, 172, 48, 35. The average of twenty- two specimens of both sexes was 180, 157, 49, 31. The ears of every adult specimen were in a very bad state owing to numbers of small grey ticks on the posterior border. Some ears were ragged, presumably made so by the scratchings of the animal in its attempts to rid itself of the irritating parasites. Here the ticks confined themselves to the ears, but at Morogoro the ticks on P. niqriseta were found all over the body, being particularly plentiful on the under- side of the tail. Round worms were found sparingly in the stomachs of several. Felid.® Felis leo massaica, Neum. — A lion passed through the outskirts of Nairobi on the night of 24/4/15 — its spoor on the flower-beds in the Commissioner’s garden was shown me ; at dawn it was seen near the Arboretum. Lions were very abundant on the slopes of Mt. Siswa when we camped there (20/7/15), and a fortnight previously a lioness had been wounded almost on the very spot where our tent was pitched. When on picket at Longido West (22/11/16, etc.) it was a common occurrence to hear them roaring. When in open bush country near Moshi (15/3/16) a sergeant rising one morning saw a lion standing, looking at the bivouac, some four hundred yards away. Other observers took it to be a leopard, however. COLLECTED OR KEPT IN CAPTIVITY 51 At Gulwe, near Mpapua, where large herds of cattle were kept for military supply, they were a great nuisance. A lioness shot herself in a gun- trap one night, some two hundred yards from the open hut in which I slept. This was the fifth lioness obtained in a fortnight (20/4/17). The natives gathered round as it was being brought in, and one old crone mumbled ‘ Lions are just like men, they send the lionesses into the trap first and so they never get caught.’ There was a general laugh at this, but another interpretation occurred to me. The lionesses might be greedy in pushing forward, and the lions politely standing aside reaped virtue’s own reward. Felis pardus suahelica, Neum. — At a military grass-cutting camp at Ngong a trap was set for leopards. One was caught, but during the night was attacked by two hyaenas, who bit off its tail and snatched a mouthful of flesh from its haunch (20/9/15). Leopards were very plentiful at Longido West in January 1916. One afternoon a sergeant of the E.A.M.R. discovered one lying under a bush in a donga some nine feet below him. It made off immediately. Their coughing cry was to be heard by the pickets almost nightly. One morning at Morogoro the writer received a message asking him to come and shoot a leopard which had been trapped near the German Mission. On arrival, however, I was told that the leopard had made off. At daybreak it had dragged the heavy trap on to a large rock, where it lay growling and worrying at the trap until 8.30 a.m., when it got free ; it bounded off the rock to the ground some twenty feet below and went off on three legs. The trap had plenty of fur on the jaws and plainly bore the marks of teeth and claws (19/10/17). It was also at Morogoro in the bush, just before sunset, whilst I was taking aim at a cuckoo, in line with the sights but at a distance of sixty yards, a half- grown leopard or large serval leapt down from a blasted tree on one of whose branches it had apparently been lying. On running to the spot its spoor was found, and about fifteen feet from the tree were also verjr fresh tracks of a bush- buck which had been pawing up the ground, presumably to get at some roots. 52 NOTES ON EAST AFRICAN MAMMALIA Acinonyx jubatus, Schreb, — On 16/7/15 a cheetah was put up at very close range near the opening gorge of the Kedong Valley, Naivasha end. It had been lying in open country with very little cover, but we did not see it until almost upon it. A paragraph appeared in one of the local papers about a pair of captive cheetah cubs — ‘ our repre- sentative who called upon them found them to be charming little fellows, allowing themselves to be handled freely, sheathing their claws.’ HYmmvm Hyaena, sp. — One of the compensations of picket-duty at Longido West was to see the hyaenas at daybreak disputing for, or gorging on, the offal which was left on the killing ground for them to clean up. One of the creatures passed within six feet of me on its way to supper one night. When taking a message across country near Mkomasi I met a hyaena at 8 o’clock in the afternoon, bright sunshine ; a scrap had taken place just before lunch, and a body which I had passed ten minutes before was probably the cause for this activity. When staying at West Kenia my host cautioned me not to put my boots outside the guest-hut at nights, as the hyaenas would surely carry them off. He related how on one Christmas Eve he heard a noise outside. On opening the door an animal ran past ; turning back for gun and lantern, he after- wards walked round the house, and in so doing came suddenly upon a large hyaena eating the leg of an eland which it had pilfered — it was then but thirty feet from the door. For some seconds it seemed dazed at the light and merely crouched over the meat, but recovering its senses bounded away, and as it did so he shot it dead. Canids Jackals were often met with, but no specimens collected. They appear to be very curious creatures. On one occasion, having shot a bustard on West Kenia plains, I was kneeling beside the bird, plugging nostrils and beak with wool. Some- COLLECTED OR KEPT IN CAPTIVITY 53 thing caused me to look round, and there stood a jackal scarce fifty yards away, regarding me intently. It cantered away only when I stood up — this occurred about 10 a.m. Another time at Lumbo, B.E.A., I had forced my way through some thick bush and was silently watching some waterfowl on the lagoon ; a slight noise behind me caused me to spring round in time to see the disappearing flank and tail of a jackal not ten feet from me. Mustelid^j Mellivora sagulata, Holl.— The only occasion on which a live ratel, or honey badger, was seen was at Longido West (22/2/16). About 2.30 a.m., whilst I was on picket on an ‘ ant-hill,’ a small animal which I mistook for a ‘ Scotch Terrier ’ came trotting past. It was brilliant moonlight at the time. Some hours later, when taking my second watch, it returned and came sniffing up to within five feet of my blankets and within ten feet of a sleeping man. At Dodoma (4/12/18) two were caught in a trap set for leopards. I saw the skins, which were drying. VlVERRIDiE Civettictis civetta orientalis, Matsch. — It is curious how a par- ticular species may not be met with in a particular locality for a long time, and then for a short period specimens crop up continuously. I was in the Morogoro district for a year before meeting with a civet, and then two specimens came in on the same day, having been killed by motorists in different districts. The male, which had been shot, measured 44§ inches from nose to tail, and its stomach contained skins of mango fruit (?), warningly coloured grasshoppers, many maggots, and parasitic worms. The female kitten had been run over by another car, and measured 31 \ inches. One brilliant moonlight night at Morogoro (27/3/18) a terrific caterwauling arose in the bush quite near camp. The boys asserted that it was caused by civet cats (‘ Eungo ’) fighting. I got very near to them, when the outcry ceased as suddenly as it began, and I suppose they must have heard me. In a 54 NOTES ON EAST AFRICAN MAMMALIA mangrove swamp near Frere Town, Mombasa (20/5/18), there was a great outcry of natives and barking of dogs most evidently hunting something. I arrived just after the kill, for a civet cat had been hunted down and battered to death with clubs and sticks. The boys said that it had been after poultry, that the cackling of the fowls had started the dogs barking, and I presume the barking of the dogs had set the natives yelling. In November, 1918, I purchased two civet kittens from a native at Morogoro ; they could just walk, and rather reminded me of collie pups, their feet being huge and out of proportion to their bodies. They would frequently stumble in their walk ; when first received they hissed like snakes when approached, and gave vent to startlingly sudden spitting noises ; after a few weeks this was given up and they became perfectly tame. I was too busy to look after them at the time, and so passed them on to someone who wished to take them home. Another man I knew had a civet kitten of the same age as mine and at the same time ; judging by the three records, therefore, the young are born at Morogoro about the beginning of November. Genetta, sp. — At Morogoro (10/12/17), on the slopes of the Uluguru Mountains, are many fine deep dongas. In one of these, nearly choked with euphorbias and other undergrowth, my boy saw a gennet cat leave its earth. He was sent into the donga to drive out anything that might be there. On hearing his cry not to shoot I came down from the top end and reached the spot where he was already clambering up the almost vertical cliff-like bank. On reaching the hole, and after a few minutes’ work of breaking away the entrance, he drew forth a scratching, spitting kitten which he dropped into his haversack ; a second was captured in like manner. The earth, he said, was unlined but perfectly clean ; it consisted of a circular chamber and two belt holes beneath the roots of a tree that had long since disappeared. Whilst he was climbing up through the undergrowth of the further bank one of the kittens escaped from the haversack and got away in the long grass : we could hear it crying — more like a squeak than a mew — and heard the mother coming towards it, but it w’as already too dark to see anything. COLLECTED OR KEPT IN CAPTIVITY 55 For the first forty hours the remaining kitten hunger- struck, and when one approached turned on its side and spat and clawed. I must confess that I was somewhat afraid of it, its spitting was so alarmingly sudden and explosive ; realising that if this con- tinued we should never come to terms, I picked it up and allowed it to bite, which I found was little more than a pinch, as its teeth had only milk dentition. A little rubbing of its ears and fore- paws eased its mind considerably, and it settled down inside my shirt whilst I wrote up these notes — this had its disadvantages, for, though beautiful and leopard- like in its markings, it teemed with ticks and fleas. Introduced to the baby lemur it nosed up in quite friendly fashion ; but the lemur, though only half the size of the gennet, reared up on its hind feet and then flopped on to the gennet’s nose. This occurred each time they were brought together. The kitten refused to touch meat, and milk it would only take if sweetened with sugar to the consistency of treacle. She drank water readily, though there was none anywhere in the neighbourhood of the donga where she was found. She was very fond of jam, and ate the contents of birds’ eggs. On December 27 a native caught an adult gennet, which was brought to me with a cord very tight round its neck and caged in a piece of wire- netting. On opening this there was a great exhibition of teeth and claws, accompanied by spitting. Just as it was being introduced to its cage it clawed the boy who was holding it ; he promptly dropped it with a yell. We surrounded the grass hut in which it had taken refuge, and searched the grass walls carefully ; finally it was detected, and one native called out triumphantly that he had secured it in some towels. Once more, with greater caution, the door of the cage was opened and the creature tossed in, towels and all. Too dazed with such unusual treatment to move— there lay my gennet kitten on its head. I picked it up and comforted it, and the hunt for the old cat commenced once more and ended in its capture. The cage in which the cat is put is 12 feet long by 4 feet wide and 5 feet high. The kitten has been put in with the cat, but gets out every night through the large wire mesh 56 NOTES ON EAST AFRICAN MAMMALIA and wanders about till daybreak. She resents being picked up, but once settled on one’s lap she will sleep contentedly enough. She frequently comes into my bell-tent at night and climbs up between the outer and inner canvas in search of insects, which are attracted by the light. One night she ate a large cricket which I had deviscerated and re- stuffed with arsenic- saturated wool and carefully set ; this apparently disagreed with her, and she vomited up the lot within a few feet of the setting board. It is very pretty to watch her pounce on a locust, which is a favourite article of diet with her. On the night of February 12-18 there was a great deal of caterwauling and fighting outside, and in the morning I found the gennet kitten dead and draggled with mud : it had apparently been killed by stray domestic cats. It measured 19 inches from tip of nose to end of tail. The old cat made a journey from Morogoro to Nairobi, living on ‘ bully ’ a good part of the way. In Nairobi it was given to a lady, who had it for a year or more ; her little girl suc- ceeded in taming it so that she might handle it ; the gennet would not let anyone else come near it, however. Finally, its cage door being left open, it escaped, probably to make trouble for systematic mammallogists making subspecific local races. Nandinia binotata arborea, Heller. — A specimen of this forest cat was shot by a sergeant of the E.A.M.R., in Meru Forest, near Arusha, Tanganyika Territory (12/4/16). Mungos mungo, Gmel. — The banded mungoose, until recently better known as Crossarchus fasciatus, was common at Lumbo, B.E.A., though not in such numbers as the sub- species at Morogoro, G.E.A. The packs at Lumbo rarely exceeded five or six individuals. One burrow was found at the roots of a tree, another beneath a huge rock on the shore, others again were living in the termite heaps. The cry is a very bird- like note emitted when hunting; hunting consists in turning over stones and scratching for insects in likely spots. When captured by the scruff of the neck these animals squeal deafeningly. A female and young one which were brought to me alive COLLECTED OE KEPT IN CAPTIVITY 57 were in a very emaciated condition, being literally riddled with what I took to be the larvae of the Tumbo Ely ( Cordy - lobia). The maggots after evacuating for purposes of pupation left great raw holes. The tail of the adult was particularly infested. The largest male and female taken measured 22j inches and 23J inches respectively, from tip of snout to end of tail. Male, 870, 210, 67, 28. Female, 860, 280, 70, 25. Mungos mungo colonus, Heller. — Several specimens of this race were taken at Morogoro, where it was particularly plentiful. Four records were made of birth and age of young. A female with very small foetus was found (11/11/17), a single naked young one no larger than one’s thumb in a nest (7/8/17), an unweaned kitten in the road (3/11/17), and two kittens able to run about and feed themselves (3/3/18). The notes at length are as follows : — (7/8/17.) ‘ In clearing some land near here the boys found the dead body of a female mungoose considerably decomposed ; near by was a nest containing a young one about the size of one’s thumb. I kept this alive for three days on diluted Ideal milk, but though it drank eagerly it appeared to pass no ex- creta, and the stomach increasing in size, it finally died. I intended to preserve it but was frustrated from doing so by an adult Mungoose, which, in its daily cruise about the camp in search of tit- bits, was seen to carry it off.’ (3/2/17.) ‘ Eeturning home about 6 p.m. after a heavy downpour of rain which had left the road in a semi-flooded state, I noticed a dozen men watching what I took to be a kitten ; it looked very forlorn and uttered a shrill, piercing cry not unlike the note of a canary. On closer inspection it proved to be a very young mungoose no larger than a rat and which had presumably been washed out of some drain. It ran well, and when covered with a towel bit its captor fiercely through it. Carrying it to my quarters, I provided it with milk, raw liver, and boiled meat, none of which it touched excepting the milk in which it lay down. All the time it per- sisted in its monotonous cry or whistle. ‘ The immediate effect of its cries was to elicit an answering call from a stray cat downstairs — such a cry as a cat answers 58 NOTES ON EAST AFRICAN MAMMALIA her kittens with. Presently she came up through a hole in the floor and approaching the box with caution, stood upon her hind legs and viewed the prisoner through the wire netting. As it continued to cry all night and was a nuisance to the neighbours, I chloroformed it in the morning. Male, 9| inches, of which Bf inches was tail.’ (8/3/18.) ‘ Purchased two young mungoose which had been found running about by a native child, they followed to heel in the most remarkable manner and in this way accompanied my boy home for a quarter of a mile. In build they are rather otter- like, but in size no bigger than a large rat. When introduced to the monkey, they sat up on their hind legs with their short fore- paws dropping on their stomachs — meerkat fashion — then they spat explosively and pretended to bite. They are very quarrelsome ; fighting over tit- bits of food. Though so small they are well able to look after themselves and spend their time running hither and thither, rooting about or digging up insects with their strong claws.’ Except when fully fed they keep up a continual bird-like chirping and cheeping. Except for the first week I did not shut them up at nights, during the day they were always free to wander about, but never seemed to go outside a radius of 200 yards from their sleeping box. After three weeks they made up to the monkey, and it was a pretty sight on a hot afternoon to see the three of them lying together in a shady spot. A dead cobra being brought me, I gave the body to the mungoose after first cutting off the head. It was most amusing to see the caution with which they approached it and sprang back, apparently with the object of ‘ drawing it ’ if alive. The bristles on their otter-like tails stood up. When sufficient courage had accumulated, they first attacked the tail which they worried and bit and afterwards gorged themselves on the entrails. Their method of dealing with eggs was most interesting. They would roll the egg towards some wall or solid object. When near enough it would be taken up in the fore-paws and held against the chest ; standing on its hind legs, the creature would then waddle a little closer to the wall, turn its back upon COLLECTED OK KEPT IN CAPTIVITY 59 the wall, straddle out its legs and suddenly fling the egg between them against the wall with the result that the egg would be broken and they could devour the contents. Given a large cockle-shell they went through the same performance, but never succeeded in breaking the shell ; they grew very excited and would steal the shell from one another and each try their hardest. The attitude of adults to snakes was interesting ; a dead snake they would always devour, a live one aroused interest, but they were excessively cautious. Even when a harmless species such as a brown house snake was turned out in the open the mungoose would treat it with respect, running in to bite at the tail and jumping back before the snake had time to strike. In the stomach of one specimen examined were the following — three frogs, two centipedes, four slugs, a carabid beetle, cock- chafers, cockroaches, locusts, grasshoppers and a large spider. This gives some idea of the omnivorous nature of their dietary, and shows how useful they must be in assisting to keep down a lot of undesirable insects. The quantity consumed by one mungoose in the course of a day must be very large. There were some peculiar parasitic worms in the intestines of a male specimen that was shot. These were Porocejphalus sp., a worm usually found in pythons but which has also been found in man (native, Dar-es-Salaam, 1918). In the case of this mungoose it is probable that it had eaten a snake, and so in- troduced the parasite into its own economy. Fleas and ticks were very abundant in the fur of most specimens. Herjpestes sanguineus ibece, Wrought. — A single specimen was obtained at Msiha River, Makindu, G.E.A. (Shell Camp). Herjpestes mossambicus, Matschie. — Four specimens were shot or dug from their burrows at Lumbo, B.E.A. It is a handsome species, of general rufous colour with black-tip to the tail. The head has a particularly evil appearance, due in part to the fierce eyes and very small ears. They are expert climbers, and remind one of martens when so doing. A pair kept in confinement were as fierce and implacable after a month’s captivity as on the day they were caught. During this time they were fed upon bullock’s flesh cut into very small pieces. They drank water. Their glossy coats testified to 60 NOTES ON EAST AFKICAN MAMMALIA their good condition and their stomachs were very full when dissected. The largest male measured 20§ inches (284, 240, 57, 28) and the largest female 21f inches (800, 250, 55, 23). Helogale ivori, sp. nov., Thos. — These small mungoose must be very abundant, though more often heard than seen. They make quite a noise as they run about in the undergrowth hunting for the insects upon which they feed. Immediately they become aware of the presence of anyone in their vicinity they make off. They live in the holes of termite-heaps, which are such a feature of the country around Lumbo where they were met with. They are fond of lying near their holes and sunning themselves in the early mornings. Four and five respectively were dug from two of these holes one morning. In one instance they were found inhabiting the same hole as a large lizard ( Gerrhosaurus major) ; a still stranger companion was a five-foot snake ( Bhamjphiojphis oxyrhynchus) which was taken out of the same burrow as two mungoose. No nest is made, and the female brings forth her young in the bare earth during the month of October and possibly November. A litter consists of four or five young (three ob- servations) ; when born they measure male, 69, 32, 7, 5, and female, 65, 33, 12, 5. The young have a bird- like cry. In captivity they were kept on an almost exclusively meat diet. They showed a great liking for crickets which they would snap out of one’s fingers in their eagerness. Crabs were also relished, though not to the same extent. Butter they would not touch ; a single individual developed a liking for jam ; cheese, chicken and eggs were taken ; the latter are broken open in the same way as practised by the banded mungoose. On an underlined sand snake ( Psammophis subtceniatus) being introduced into the cage, it was immediately pounced upon and crunched up, the whole of it was apparently eaten by the one mungoose which growled like a cat continuously and flew at its mate whenever she ventured near, which she did again and again. Lizards were also seized with avidity. This mungoose is in the habit of sitting up on its haunches with its fore-paws resting on its stomach after the manner of a meerkat. They also showed great expertness in climbing the shrub which was put in their cages. COLLECTED OR KEPT IN CAPTIVITY 61 The largest male measured 14J inches (242, 135, 40, 20), and largest female, 15 inches (240, 140, 40, 20). Over twenty specimens were obtained. Tumbo fly had infected one specimen, but the remainder were apparently very free from parasites, they kept themselves very clean externally, but one rather shirked the examination of their stomachs as these smelt so strong. SciURIDiE Paraxerus flavivittis mossambicus, subsp. nov., Thos. — A long series of this new sub-species was obtained at Lumbo. It is possible to live in close proximity to these squirrels without being aware of their existence, so expert are they in climbing round the trunks of trees, flattening themselves out on branches and making themselves scarce generally. They are extra- ordinarily fond of heat ; soon after sun-up they crawl out on a branch, and flattening themselves out to absorb all they can, they bask like lizards. Young ones would lie at 3 o’clock in the afternoon on a table in the full glare of a sun that quickly rendered metal tools too hot to handle. Whilst in captivity adult- caught specimens seemed but little tamer after three months’ confinement, young specimens go to the opposite extreme and seek human companionship. The young are brought forth in September (three ob- servations), the nest is composed of a mass of fine grass and is placed in a hollow tree-trunk. Young taken on October 4 from such a nest were fed on milk for the first few days, then they were given sugar and raw oatmeal, and in due course ground-nuts, potatoes, bananas, jam and milk puddings. The favourite food was bananas, over which they would grow quite excited. Natives assert that they gnaw holes in clothing (!), on one occasion I disturbed one in my tent. After the first three days in captivity the young ones were allowed their liberty and slept wherever they liked, above all they preferred a sack of kapock. They would burrow into this and not re- appear until 11 a.m. next day. It is difficult to know how they could breathe in such fluffy stuff. In the mornings they would climb a mango tree and bask in the 62 NOTES ON EAST AFKICAN MAMMALIA sunshine until called down by the sight of food. A plantain- eater was kept in a large cage on the ground and they would get in through the wires, climb into the porridge plate and sprawl about eating heartily. They were but little larger than the plantain- eater’s head, yet the bird never molested them, but would continue feeding with the uninvited guests. On another occasion one of them was plundering the food of an old male squirrel, when he came down from his sleeping- box, approached slowly, then suddenly snapped viciously at the intruder. The little creature only moved slightly so that he missed his aim ; this was repeated a second time with like result. Then the old squirrel, apparently ‘ liking its style,’ pounced upon the mite and gave it — a licking from head to tail. The largest male measured 13 J inches (176, 160, 40, 15), and female 13f inches (175, 175, 40, 18). Average measure- ments of fifteen specimens of both sexes was 162, 159, 39, 17. Paraxerus ochraceus, Huet. — Specimens of this squirrel were collected at Morogoro, Dodoma and Kongwa. The largest specimen came from the last-named locality, and was a female 12J inches in length (174, 152, 35, 21). Paraxerus ochraceus aruscensis, Pagen. — Collected in Mt. Meru Forest, a few miles from Arusha. This species is also common at Mombasa and Frere Town where specimens were taken. Paraxerus ochraceus jacksoni, De Wint. — The common forest squirrel about Nairobi. Attracted by the cries of some birds on the outskirts of the Parklands Forest, one of these squirrels was observed turning round and round a branch like a Catherine wheel, though more slowly. It made off immedi- ately on being approached, and the birds also scattered, to continue their outcry at a more discreet distance ; a puff adder, however, was found lying on the ground about eight feet from where the squirrel had been performing. Probably the squirrel had seen it also, and was showing his objection to the disquieting discovery in his own fashion. The largest specimen was a male measuring 14 J inches (180, 180, 38, 19). Xerus rutilus saturatus , Neum. — Was very common in the neighbourhood of Longido West. It was probably the same COLLECTED OK KEPT IN CAPTIVITY 63 ground squirrel that was seen at Mbunyi and Mkomasi. A Longido female obtained on January 31 measured 17f inches (24 2, 216, 53, 18), and had two foetuses in uterus, nothing but green leaves in stomach. CRICETIDiE Taterona leucogaster, Peters. — Three specimens of these light brown rats with white bellies were dug out of ant-heaps. The largest specimen was a female measuring 9| inches (140, 154, 35, 20), the biggest male was only a little shorter in the tail. Taterona swaythlingi, sp. nov., Kersh. — Common at Moro- goro, especially under sisal hedges, in the clearing of which a good many specimens were obtained. The largest male measured 12J inches (180, 128, 37, 22), the largest female 12J inches (140, 171, 34, 21). Taterona taborce, sp. nov., Kersh. — Obtained at Tabora, all the specimens had their ears affected with a mould or lichen-like parasite. Murids Steatomys loveridgei, sp. nov., Thos. — A single specimen of this fat mouse was obtained at Lumbo, 1/10/18. It measured 4§ inches (male 77, 35, 15, 18). Battus fumatus, Peters. — Very common at Morogoro, where a large series was obtained. They were commonly found beneath any object in the bush or fields, particularly near dwellings. Battus couclia, subsp. — This species was also met with at Morogoro, a male was found in its nest in a hollow tree at about four feet from the ground, it bit fiercely on being picked up. Another specimen was taken as it emerged from a hole in the ground. Battus couclia panya, Hell. — Very common at Nairobi, where it is so bold that it will come out and feed in broad daylight. Leggada bella, sabsp. — Taken at Dar-es-Salaam. A single male measuring 3§ inches (48, 37, 11, 10). 64 NOTES ON EAST AFRICAN MAMMALIA Leggada bella, subsp. — Several specimens were taken at Morogoro. Two females measured 4 inches (53, 46, 12, 9). Leggada bella, subsp.- — A pair were taken at Tabora. The male being just under 4 inches (55, 45, 12, 9), and the female 3f inches (50, 42, 12, 8). Arvicanthis abyssinicus neumanni, Matschie.— This sandy- coloured rat was very abundant at Dodoma in the thorn- bush and in open spaces in the village. It runs about during the heat of the day, but bolts into its burrows at the base of a thorn- bush when anyone approaches too close. I was told that twenty- four were captured in four wire traps set in a store during the course of a day. One of the specimens col- lected had three legs afflicted with what appeared to be elephan- tiasis. Some three dozen specimens were taken ; of these the largest male measured 10f inches (150, 113, 24, 17), and female 91 inches (125, 110, 25, 15). Lemniscomys griselda rosalia, Thos. — At Morogoro a few specimens of this striped rat were taken, but the animal was far from common. A male measured 10 J inches (21, 140, 26, 19). A female measured 9| inches (115, 130, 25, 19). Grammomys surdaster, Thos. and Wrought. — At Morogoro and Lumbo. In both cases the animals had built their nests within those of weaver birds at a good height from the ground. Male measured 10 inches (108, 146, 48, 16). An immature pair were taken in their nest which was con- structed within that of a weaver bird, situated in a bush at a height of 5 feet from the ground. They were kept in cap- tivity for a week and would eat almost any kind of food. The male escaping on September £0, 1918, the female was chloroformed. That the male was still in the vicinity of the tent was evidenced by sundry depredations. Exactly a month later this rat was taken in a fold of the tent in which it had gnawed a large hole and carried up fine shreds of grass wherewith to make a home for itself. PEDETIDiE Pedetes surdaster, subsp. — Jumping Hares were to be found outside Morogoro. At Tabora a specimen was caught by some COLLECTED OR KEPT IN CAPTIVITY 65 natives after a heavy downpour of rain which was supposed to have washed it out of its burrow. Bathygerid^ Heliophobius argenteo-cinereus, Peters. — This large grey mole rat was occasionally brought in by the natives who dug it up in their gardens. A male measured 6J inches (168, 6, 29, 0), a female was 5| inches in length (188, 7, 29, 2). Hystricid.® Hystrix galeata, Thos. — Six porcupines were killed in the course of a few weeks on an estate at Muthaiga, near Nairobi (June 1915). They do a great deal of damage, eating quan- tities of maize cobs, which they obtain by gnawing through the stem until the plant falls. When visiting at the house one day, a bull- terrier came in bristling with quills, blood running from his right shoulder, and lame in his right leg. It was thereupon decided to unearth the offender, and four kerosene tins of disinfectant were prepared and poured down one of the holes or entrances to its burrow. It did not bolt from the other outlet, so both holes were blocked up and a dozen natives sent into the thick scrub behind to beat it out, whilst a gun guarded the holes. After a wait of nearly twenty minutes there was a grunt and a rush through the undergrowth, the beast suddenly appeared and dived into one of the entrances to the burrow, two dogs who were following at his heels were soon on top. A great pandemonium ensued, dogs and quills were falling in all directions, growls, yelps, squeals striking on the ear simultaneously defied description. In less time than it takes to relate, however, the porcupine scrambled out and made away through the cover, we in pursuit ; but it made good its escape. At Dodoma a well- used earth was found beneath a large rock, and a friend meeting the porcupine early one morning, shot it. 66 NOTES ON EAST AFRICAN MAMMALIA Leporidje Lepus capensis abbotti, Holl. — A single specimen was ob- tained near Dar-es-Salaam. Male. Lepus whytei, Thos. — Half-a-dozen leverets were brought to me whilst at Lumbo, between July 10 and October 1. The young are evidently brought forth during the whole period, possibly all the year round. Two leverets were found in one form, usually they were found singly, as if only one were produced at a birth. They make delightful pets, but are only short-lived in captivity. Four very small ones succumbed to diarrhoea, though their Ideal milk was diluted with six parts of water. Their milk was fed to them through a glass blow-pipe, one end of which was retained in the writer’s mouth so that the fluid should not flow too fast ; they sucked eagerly at the tube, and one individual, if shewn the tube, would hop about the table after it. This specimen, after being fed a week upon milk, took to nibbling grass, and appeared to be doing all right, when an accident occurred. Whilst ‘ out to grass ’ in charge of a native, it bolted. On overtaking it the boy pounced upon it as it squatted in a clump of grass. One of the blades, presumably, punctured the eye. From that time it moped, refused food, and died on the third day after. Another was kept for over a month fed upon a mixture of tea leaves and stiff porridge, with the addition of greens when obtainable. Its death was also an unusual one. Its run, which was 8 feet long by 2| feet broad, was invaded one night by ants, which apparently attacked eyes and mouth ; in the morning it was found dead with the lips badly eaten away. When out in the bush they were not often seen — possibly one per week. They appear to be quite unable to rid themselves of burrs when these become attached to the fur. SuiDiE Potamochoerus choeropotamus, subsp. — At Morogoro, on January 9, 1918, some natives brought me five young wild pigs, characteristically striped. The mother had left them under a bush in a rubber plantation. They averaged 14 inches in length, of which would be tail. COLLECTED OR KEPT IN CAPTIVITY 67 Procaviid^j Procavia frommi, Brauer. — Rock Rabbits were common, both at Dodoma and Tabora, where they were found on rocky kopjes. They might often be seen on the branches of trees as well as on the rocks. They always carry a lot of worms in the stomach, both Nematode and Cestode. The following were found in one Dodoma specimen : — Crossophorus collaris, Hempri and Ehrb, Anoplocephalus spatula v. Linst., Inermicapsifer. The largest male (Tabora) measured 17f inches (450, 0, 62, 29), and largest female (Dodoma) 18^ inches (470, 0, 67, 85). Procavia, sp. — When at Morogoro I saw some skins of a Hyrax exposed for sale in a Greek’s shop. I inquired where they were obtained and learnt that they came from near the top of the Uluguru Mountains. I made it known among the boys that I would be glad to purchase specimens if brought in the flesh. It was more than a year before a specimen was brought to me. It was a female measuring 23| inches (595, 0, 79, 82). In the uterus was an embryo 88mm. long, with a coccyx 1mm. in length. Manid^i Manis temmincki, Smuts. — On January 10, 1918, a native brought me a pangolin which he had captured near Morogoro. He had inflated views of its value and wanted 27s. for it, so that I did not purchase it. He returned on the 15th inst. and sold it to me at a more reasonable figure. It was well over three feet in length. When all was quiet it would cautiously unroll, revealing its long pointed nose ; if nothing happened it would then begin to trot away with the fore- legs, looking painfully awkward, almost as if the creature were trying to walk on its wrists, nevertheless it managed to travel fairly quickly. It rolls up immediately on being disturbed, and gives a little snort of annoyance ; if you then attempt to pick it up, its plaited tail flies round with good force and then returns to protect the head. I spent two hours in making a run secure — as I thought ; twenty minutes after being put in, however, it had disappeared, and was not to be found, though forty boys were out looking for it with lanterns. On February 1 a young 68 NOTES ON EAST AFRICAN MAMMALIA specimen about 18 inches in length was brought me, but I did not purchase it. Orycteropodidje Orycteropus cethiopicus, Sund. — Aard Yark, ant-bear or earth- pig, as they are variously called, were common at Moro- goro and Tabora, but never seen unless dug for. Having located a burrow at Tabora on December 11, 1918, I set eight boys to dig it out at 7 a.m. They kept on till I joined them at 4 p.m., having knocked off work for an hour at noon. They had dug a furrow about twenty feet long and varying in depth from six to ten feet, they reported having twice caught sight of its tail. I kept them working fast in relays and presently saw what I took to be a foot throwing back the earth. I fired at this, but it proved to be the tail which is extraordinarily thick and an aid to the feet in throwing out the soil. After another half-hour’s digging, a boy seized the creature by its tail, two more boys held on to the first boy’s legs, never- theless, he was slowly but surely drawn into the burrow up to his waist. Muffled cries proceeded from him and finally letting the animal go he was pulled out fairly smothered in the loose, sandy soil. Digging at once went on, and when the creature was again sighted ropes were attached to the two hind legs, these were used to draw it like a refractory cork from a bottle, it was not long before one was snapped, but the creature came out, plunging like a tethered bull. To my great surprise it was about five feet in length, and a couple of feet in height. I fired at it at a distance of twenty feet with No. 5 shot from a 12 -bore, the shot hit it in the neck, but it took no notice except for a sudden plunge. A boy then approached and brought down the heavy end of a mattock on its head with full force. This resulted in the animal rearing up on its hind legs, snapping the second rope, after which it broke away across country at a peculiar yet fast gallop. It went to earth in a burrow on the railway embankment, and as we arrived at the spot, all that was to be seen was a few handfuls of earth being flung out. If it had not been that the creature was possibly wounded more severely than was apparent, I should have liked to have ceased the chase and given it its well-earned liberty. Quite fifty natives had collected by this time and eager hands were THE RAID OF THE PONERA 69 soon at work digging, when suddenly the ant-bear turned and charged out of the burrow, natives fell over in every direction and got in each other’s way. A Kavirondo brought his club down on the animal’s head which only had the effect of breaking the club, the animal continued for a hundred yards and went to ground in another burrow. Someone seized its tail and hung on whilst others attempted to fasten ropes, boy after boy fell back to spit sand from his mouth, and clear it from his eyes and hair. The sand continued to be thrown out in powerful jets. A rifle which had been sent for arrived at this juncture, and a couple of shots killed the poor creature without further delay. It was found to measure 68 J inches of which 28 \ were tail. (Male 1140, 590,225, 175.) For Notes on Horned Ungulates, Elephant, etc., see index to Natural History Diary for the period 1915-1919. THE RAID OF THE PONERA An Impression By R. Harger An hour before an African sunset on the coast near the Equator. This afternoon there was heavy rain which lessened to a drizzle and has now ceased. The air is still, damp, and quite chilly in comparison with the pre-storm midday heat, which has left the earth much warmer than the atmosphere. Thus, already a slight haze is produced which is noticeable even within fifty yards. The light is subdued. Excellent conditions for certain insects to be on the move, especially those which travel on legs alone. What a world to tackle for those whose eyes are, maybe, but one-sixteenth of an inch or less above the ground ! — eyes which perhaps are not very keen of vision or long of focus. Along a slight track, worn by native feet, are many obstacles. Many small pools of water held and bordered by fine mud. Here a sodden and tangled mass of grass stems. There a small washout still holding water held back by dams 70 THE EAID OF THE PONERA of dead leaves. Fallen from the trees above are many sticks partially embedded in mnd. On the adjacent land untrodden by human feet, these obstacles are greatly increased in magnitude and number. Here the termites (white ants so called) revel in luxury. Keep your eyes on the clearer pathway. Wait patiently ; something may appear. What is that ? About thirty feet away on the pathway is a blackish streak a few feet long. A disturbed nightjar diverts one’s attention fora few moments, but look again. The streak is not so long as it was. It is moving. A slight undulation in the ground has apparently shortened its length. Go closer. It consists of insects. Go closer still. They are black ants of equal size, on the march five or six abreast, in irregular formation of a column about five feet long. Half a dozen scouts are three or four inches ahead of the main body. Stoop and puff a breath on the middle of the column. It expands slightly, but quickly regains formation. Go ahead and put a stone right on the line of march. A slight check results and the column winds round it. Go ahead again, and with a stick score a rut right across the track. The leaders stop. The head of the column slightly expands. Willing investigators dart out. No danger. The ants pass through the rut and regain formation, the scouts constantly falling back and being replaced by others. We must cease to worry them. Evidently they are moving with set intention, some definite business ahead. What can it be ? Let us wait and see. There they go at a steady pace of about two yards a minute, every individual well separated and self-reliant, yet forming part of a body which is perfectly self-contained. A small brown field cockroach carrying a cachet of eggs darts out from a grass clump, attempts to cross the path, nearly collides with the column and darts back. The ants take no notice of her. Without doubt they are after better game, the search for which concerns every member of the party. Watch their antennae, which are held with points held downwards, but are constantly raised for a second or two as if feeling for some wireless message. A few yards more of orderly march and then— the leading members hesitate for a moment. The head of the column THE RAID OF THE PONERA 71 opens out. Instantly the formation is broken. Every mem- ber breaks off almost at right angles to the line of march at much increased speed. To the human eye there is nothing to account for this rapid dispersal. The direction is towards a small open space where lie sticks and prone tangled stems of sodden grass, five or six feet distant from the pathway. On reaching this every ant uses his jaws. Many curve their bodies in exerting all their strength to remove bits of mud and vegetation. Other jaws appear from below— yellow jaws. Termites are here, hence the felled stems of grass. The fight has begun. The black ants quickly open up the white ant runs, which, owing to the recent heavy rain, had no visible surface earthworks. The termites, lovers of darkness, are seized as they come to the surface. Some manage to leave the burrows, and to slowly wander on the surface with uplifted jaws in readiness for the downward stroke, but very soon they are seized bodily by black jaws at the side or rear. At the holes a few pairs of yellow jaws have been buried in black bodies which are curled in the death-struggle, for the grip of the termite is a terrible grip. Black ants are scouting the vicinity and exposing more passages. The fight has now lasted for about three minutes. The combatants are spread over five or six square feet. Suddenly, as if by pre-arranged signal, the outlying raiders cease their work. They feel the air for a moment, and then concentrate on the main body of blacks which are already moving towards the pathway whence they came. The fight has ceased. The return journey has commenced, but the struggle has not been entirely one-sided. Five or six black bodies can scarcely move. Perhaps as many more, sticky with termite secretion, have been dragged underground. Nearly every black ant carries a white victim, now motionless in black jaws. Nearly, but not all, for on reaching the path- way the column reforms, heading whence it came and led by unburdened scouts. A few others flank irregularly. The remainder gather in the rear. The main body carries the spoil. All resume the former steady marching pace. But observe : away back some few feet is a black straggler who is evidently endeavouring to rejoin the column. His effort is great, but his pace is slow, like a very lame horse in 72 THE MIGRATIONS OF BUTTERFLIES a hurry. Something is attached to one of his hind legs. The writer stoops to investigate, and with a bit of grass holds the obstruction to the ground. It is an atom of dry vegetation attached by a viscid substance, perhaps termite secretion. The ant struggles, frees itself, and greatly increases speed towards his retreating companions. He has a long distance to go, but manages to join up. The column is now well away on the homeward journey at a steady pace, and turns from the path into the grass without hesitation. The dark stream enters long grass. The sun has set, and the rapidly waning daylight is insufficient for further observation. No doubt the column will disappear down some hole at the base of a tree or stone. Such is a raid of the Ponera Ant in an organised body, which, for cohesion, mobility, elasticity, and unity of action, could not be excelled by any human gathering, and cannot be accounted for by the mere word instinct — a word so easy to jerk off the end of a pen, and yet so difficult, even impossible, to define with the combined aids of human speech and reasoning. Wherefore, this effort to picture in words what the greatest masters of the brush could but portray in sombre colours, which would appear very flat without detailed action. A series of still photographs would serve the purpose no better. A series of cinematograph pictures would be nearer the mark, but surely a streak of small objects moving for half an hour at a uniform pace, and this to end in a three-minute struggle, would make a poor picture. No, there are some actions and efforts of which descriptions had better be left to words, however faltering and inadequate such words may be. THE MIGRATIONS OF BUTTERFLIES By H. L. Andeewes The fact that large numbers of butterflies have the habit of travelling in a body in a fixed direction at certain times is well known, and many records of such movements are to be found in various scientific publications. Several species, THE MIGRATIONS OF BUTTERFLIES 73 belonging to several families, are recorded as having this habit, e.g., many Pieridse, Euploea among the Danaidse, Pyrameis cardui among the Nymphalidse, Polyommatus bceticus among the Lycsenidae, and Calpodes ethlius among the Hesperiidae. Beyond the bare fact that such migrations do take place but little seems to be known. It is always assumed that the necessity for ensuring an ample food- supply for the succeeding generation causes these movements, and in the absence of any evidence to the contrary this must be accepted as the true reason. The depletion of the food- supply following on an abnormal increase of the numbers of the caterpillars in a district, or an insufficiency of food due to drought or any other unfavourable condition, is ample cause for an exodus from the district. This is as obvious in the case of butterflies as in the case of mammals or birds ; but there is a fundamental difference between the cases. Butterflies have a life of only a few weeks (if we except the few that hibernate in temperate climates), whereas the higher animals live for some years. When, therefore, a migration becomes imperative for the latter, they are practically certain to have among them individuals with previous experience to guide them. With butterflies the migration takes place without any such help. It is this fact that makes these journeys of hundreds of miles so wonderful. It is incredible that flocks consisting of myriads of butterflies should all go in one direction in search of food on the mere chance of arriving at a suitable spot. We are compelled to fall back on instinct for an explanation. Lemmings have this inherited impulse, or instinct, to migrate at times in a certain direction ; in their case it leads to their undoing, for they tumble into the Baltic and drown where their ancestors found dry land. Does some similar fate overtake the butterflies ? It is to be supposed that on arriving at their destination they will find, as a rule, the district already occupied by residents of their own species ; so that unless the vast majority come to grief, over- population must occur in the new district and the trouble continues. So another migration must take place, and so on indefinitely. Until voluminous and accurate data are collected from all parts of a country their movements cannot be traced. Although to do so, especially in a country like East Africa, with its 74 THE MIGRATIONS OF BUTTERFLIES small white population, is difficult, it is not impossible. Even supposing their movements to be traced, there remains the problem of the origin of the habit. It probably began by small migrations. It is conceivable that in past times their foodplant existed in a belt, or a wide sheet, which with geological and climatic changes became broken up gradually into dis- continuous areas, so that the small migrations became slowly lengthened out until they reached their present great length. Evidence is badly needed as to the proportions of the sexes in the flocks. In one observed by the writer recently, males and females were in about equal numbers. Canon Rogers, in a letter to the writer, says : ‘ There is some evidence that they frequently consist mainly or even exclusively of cJcJ.’ If the latter statement proves to be correct on further investigation it will add a complication to the problem. The following facts were noted by the writer in connection with two migrations of the Pierine butterfly Belenois gidica , passing eight miles N. of Lumbwa Station. The first began towards the end of January, 1921, lasting until about the middle of February. The direction was rather W. of N.W., so that those passing the point of observation were on a line which would eventually take them between the N.E. corner of the Victoria Nyanza and Mount Elgon. This flight was also seen by the writer about Mola Station, going in exactly the same direction. The second, an even heavier migration, was seen first on March 2, travelling about N.N.W., or in a direction which would clear Mount Elgon on the E. This continued for about a fortnight. When high hills are reached there is no deviation ; they pass over the hills without changing their direction. When blown off their course temporarily they seem to make up the leeway as soon as opportunity occurs. They fly as a rule near the ground, but many are to be seen at a height of fully 100 feet, especially over hill- tops where they adopt a lazy, floating mode of flight. In a violent gust of wind those passing over a forest- clad hill- top dropped and settled on the ground and shrubs in the forest, until the wind was normal again, when they resumed their journey at once. The speed varied, according to the direction and force of the wind, from as low as five or six to as much as twelve miles an hour, averaging about nine miles ON BAOBABS AND RUINS 75 an hour. They got under way about 9.80 a.m., and began to settle down for the night on low herbage towards 5 p.m., when it was noticed that a certain amount of pairing occurred. The flight goes on without cessation, except when the sun is obscured, when they settle until it is fully out again. The only other stoppage is for short visits to flowers on the way. The few left in the district when the migration has passed by consist largely of very dwarfed examples, some no larger than a Polyommatus boeticus, presumably weaklings unable to continue the journey. The only other records in the writer’s possession are contained in the above-mentioned letter from Canon Rogers, dated March 8, 1921, in which he says : ‘We have had two marked migrations in these parts [Kabeti] a few weeks ago, i.e ., Catopsilia florella going N. followed by Belenois mesentina going S.’ Any notes, however seemingly trivial, on this subject will help towards solving a very interesting problem. In all cases a fair number of specimens of the butterflies (in paper triangles) should be sent if possible, accompanied by accurate notes on dates and duration of flight, direction and locality, with any observations on habits, attacks by enemies, etc. If an unusual number of any species, appearing travel- worn, should be recorded as occurring suddenly in any district without showing signs of moving on, it would be a fairly certain indication that that district was the objective of a migration, and the butterflies should be found laying eggs. ON BAOBABS AND RUINS By C. W. Hobley In travelling along the coast of East Africa from Yanga to Lamu, groves of baobab trees will be noticed at intervals. The one known to most visitors is that on the south-west side of Mombasa Island, other known examples occur on the north side of Takaungu creek and the north side of Kilifi creek. Upon investigation, I was somewhat surprised to discover that these groves were almost invariably found 76 ON BAOBABS AND RUINS on the site of an old ruined town ; the frequency of this occurrence seemed to be more than a coincidence, so I cast about for an explanation. After much fruitless enquiry, an old man gave me the following explanation, which is so simple and so probable that I cannot help thinking that it must be correct. He stated that if the Swahili woman wishes to cleanse her hair she obtains a quantity of the seeds of the baobab 1 and macerates them in water and makes a hair wash. My informant went on to say that when the women had made their hair wash they threw the seeds out on to the domestic dust heap, and while the town was occupied, of course, if they germinated they had very little chance of survival, for the goats would nibble off the seedlings, but once the place was deserted, owing to war or other causes, the bush would cover the area, and the more recent baobab seeds would germinate along with other plants. In this case it may be deduced that the age of the older baobabs, if it can be determined, would give with reasonable accuracy the date of the abandonment of the site. The hard shell which forms the outer covering of the baobab is also used for drawing water out of wells. A square hole is cut out of the side near one end, the seeds and dried pulp are taken out and thrown away, or possibly the latter is used for hair wash, and three or four of the empty shells are suspended on a rope and used for raising water. This is a collateral explanation of the presence of these baobab groves on old town sites. There is a current idea that, on account of the great bulk of the baobab trees, they are of enormous age ; this belief is, I consider, a somewhat ill-founded inference. The baobab belongs to the mallows (Malvaceae), and the wood is hardly worthy of the name, as it has the consistency of a cabbage stalk, and it is sometimes used for the manufacture of paper. I endeavoured to count the rings of growth in a medium- sized tree which was cut down in constructing a road ; allowing 1 The flesh of the baobab fruit in which the seeds are enveloped, as is well known, contains a certain amount of tartaric acid, and possibly in the form of tartrate of potash, and it is sometimes used for making a cooling drink. SHELL REMAINS 77 for two rings per annum, that is, one for each of the two rainy seasons in each year, I could not count more than 220 rings. It was not easy to be certain of the number when one approached the outer circumference, for naturally the rings gradually became thinner as one counted from the centre to the circumference. Assuming that the count was fairly accurate 220 rings would give an age of 110 years, which seemed small for a tree about ten feet in diameter. Baobab trees are difficult to cut down owing to the spongy nature of the wood and their great girth. During the railway construction it was found that by anchoring one end of a steel rope, taking a turn round the tree and attaching the other end to a traction engine, the rope would cut through the base of the tree. The trouble was, however, not then finished, for the tree just stood where it was, and the rope had to be attached to the upper branches and the tree pulled bodily over. Baobabs are deciduous, they only bear leaves for a very short period during the year, and the remainder of the tree stands as a bare dropsical monstrosity, but even then a grove of them has a charm of its own, and they give a very distinctive note to the scenery of the East African coast, and will be missed when they are swept away to make room for improvements. The great white flowers, some six to eight inches in diameter, are very beautiful in their way, but like the leaves they last a very short time ; the young leaves are greatly prized as food for livestock, and slabs of bark are cut from the trees by the natives to make rope and plaited bags. The baobab, nevertheless, appears to have the faculty of healing wounds in its epidermis, however extensive they may be. The fruit juice is also used by rubber planters as a reagent for congealing the latex. SHELL REMAINS By C. W. Hobley In some parts of the coastal plain in British East Africa, particularly south of Mombasa, one’s attention is attracted to the fact that the ground is strewn with myriads of fragments 78 ANNUAL REPOET, 1920 of marine shells, and at first sight one might attribute a natural origin to these accumulations, Le., premising that we had the relics of a raised sea beach ; further enquiry, however, elicits the fact that they are all of human origin, and derived from live marine shells brought up from the seashore and broken up where there was a convenient exposure of old coral reef in order to extract the molluscs inhabiting the shells, and which are an article of diet among the Wa Digo, particularly when they are a little short of food. Similar shell deposits are recorded from other countries as left by early man of Neolithic times. To the Editor Dear Sir,— I must confess to carelessness in handing in my MS. of Notes on Tortoises, in Journal 16, page 50, where ‘ upper shell (plastron) ’ should read ‘ upper shell (carapace) ’. As an opportunity for proof-reading cannot be afforded, the error went to press. Kilossa, June 14, 1921. A. Loveridge. ANNUAL REPORT, 1920 The period under review has been one during which, for financial reasons, the Society has had to curtail its activities, and as a result there is little to report. Several members of the Committee proceeded home on leave during the year, and as vacancies could not be filled, the Society became more or less dormant. The latter part of the year has been marked by renewed activity, and the position of the Society, both as regards its undertakings and financially, shows marked improvement. Membership — The membership has steadily increased, indicating continued interest on the part of the public. Museum*— No records have been kept as to the number of visitors. One new forty-drawer cabinet for insects has been installed, ANNUAL REPOET, 1920 79 and shelving erected in the workroom, to accommodate the study collection of reptiles. The entire exhibition collection has been relabelled and additions made. The large labels for the Game Heads were printed gratis for the Society by the Leader Office. Very few fresh specimens have been added, but small collections which had been sent home for identification have been returned and incorporated in the general collection. Curator .— Mr. Loveridge returned to Nairobi in August, and assumed his duties as Curator at an increased salary commensurate with the increased cost of living. As the Society was unable to promise employment at this increased salary for more than three months, Mr. Loveridge resigned his appointment in order to join the Game Department in Tanganyika. During Mr. Loveridge’s period of office the entire Reptile collection was rearranged and labelled, and the general exhibits overhauled. Mr. A. F. Gedye was appointed to the Curatorship for a period of six months as from November 1 . Publications — One Journal was issued during the year, and manuscript for the succeeding number sent to the publishers in October. The cost of publishing the Journal continues to increase, and now stands at about £90. In order to keep the cost within the means of the Society, all illustrations have had to be omitted. Special Funds.— The Illustration Fund has not received the support it deserves. A special Curator’s Fund was opened, and certain gentlemen have generously contributed thereto. An unsuccessful appeal was made to Government for funds to meet the cost of the Curator’s salary for one year. Monthly Meetings — Owing to the disinclination of members to read papers at the members’ meetings, no meetings have been held during the year. Financial — A statement has been prepared by the Hon. Treasurer and is appended hereto. V. G. L. VAN SOMEREN, Hon. Secretary. EAST AFRICA AND UGANDA NATURAL HISTORY SOCIETY. BALANCE SHEET FOR YEAR ENDED DECEMBER 81, 1920. BALANCE SHEET CO aJ O O 05 O ^ O O CO O . © O O o CO H oo HH o 05 r-t O CO O CM CM co~ T— I m Ph H P5 ft H M ft & ft ft X o EH © eft : o © co ft o o 4-3 © ft ■ft P g <1 © 5 CD ft © .§ o § ^ § © .+=> ^ ft © 02 r-H 00 i— H O Ph O ft ft co Hccoffl oPQ 02 lO 6 ^ L— O oo o © 00 ep O O ^ © © lO *0 ft 05^ © "ft .9 x °2 Ph ft ^ .P ft CO 4-= © © • ft ft «u P^4^ © © * ft 3 ft pq O Ph ^ <1 cc Printed by Spottiswoode. Ballantyne & Co. Ltd., Colchester, London and Eton. Audited and found correct, H. C. E. Barnes, J. Twells. Honorary Treasurer . — a i Vhjvjuvj^jO Fig. 4. AFRICAN SIGN- WRITING 25 (c) Men standing outside. (i d ) The accused. On the left, at the top, a fetter with which he is secured. The sign used for the man is said to indicate that the charge is adultery. (e) That the accused is a dissolute fellow. (/) Said to represent evidence of previous similar offences. (g) Represents a man who is present, and who states that he has nothing to do with the case. (See also paper by E. Dayrell, J.A.I. vol. xli.) Other sign languages of a somewhat similar character are recorded from the Wey tribe on the coast of Upper Wey Signs. Banum Signs. 1. dsi Water 2. bill— — » — rxg 3. pi AA Elies Horse Fowl 3. yuone __ Eyes Eyebrows, Eyes, 4- yu Mouth 5. tuade Dust 6. mbe Fig. 5. Food on plate To write or a table No ' It represents the outstretched hand, viz., ‘ it is nothing.’ Guinea and the Njoja tribe of Banum in the Cameroons. The former is said to have been invented by a man of the tribe as recently as 1834, and Weule considers that it was suggested by the writing of Europeans and Mohammedans. A few examples are given in Fig. 5. Like Egyptian hieroglyphs and Chinese ideographs these primitive attempts at conveying thoughts by marks are ideographic, and it therefore appears certain that the mind of primitive man and the savage of to-day work in the same 26 AFRICAN SIGN- WRITING manner, and that in neither case did written language com- mence with the invention of an alphabet. Further, it seems certain that ideographic writing cannot survive alongside languages recorded on an alphabet basis, for ideographs fail, to a great extent, in the expression of abstract ideas. The Greek alphabet killed the Egyptian hieroglyphs ; and the cumbrous Chinese so-called alphabet, which is ideographic, has, I take it, only survived owing to the long isolation of China. As regards these poor African attempts, they are, of course, doomed to early extinction as elementary European educa- tion spreads among the tribes. The invention of accepted symbols to express the various vowel and consonant sounds of which words are composed was one of the greatest discoveries mankind has made. Consequent upon this discovery was the expression of musical tones by conventional signs, which was another great stride in mental development, and without which music in its modern sense could not exist. Much research is still needed in regard to the birth and early development of written language, and it is to be regretted that black Africa does not appear to provide evidence of a more advanced nature than it apparently has up to date. Even with the well-known established languages there are so many questions one asks oneself : Why, for instance, are the languages of the European group written from left to right, whereas Arabic and Persian are written from right to left ? And even here there is an inconsistency, for Arab numerals are written from left to right as ours are. Can it be that they borrowed their numbers from the West ? Why, again, should the Chinese write in vertical columns ? More information, however, undoubtedly remains to be collected, and no oppor- tunity should be missed by residents among tribes which may, as yet, be comparatively untouched by European influences. SEDIMENTARY ROCKS — KENYA COLONY 27 A SHORT ACCOUNT OF THE SEDIMENTARY ROCKS FOUND IN THE NORTHERN FRONTIER DISTRICT —KENYA COLONY By Y. Glenday, M.A., F.G.S. The Northern Frontier District proper comprises the country which lies between the left bank of the Northern Uaso Nyiro and the Abyssinian Frontier stretching east- wards from Lake Rudolf through North Jubaland to the Juba River. This somewhat remote and turbulent area is of great interest geologically, containing, as it does, Lake Rudolf (part of the eastern arm of the Rift Valley), the great Archean complex of gneisses and schists which form the Abyssinian 28 SEDIMENTARY ROCKS IN THE escarpment proper, and the volcanic mountain of Marsabit with its circumambient plains of lava. Not the least interesting feature, however, is the great development of sedimentary rocks which have been found to exist on the eastern portion of the district, and to stretch south-eastwards towards the sea, disappearing before reaching the latter under the alluvial plain of South Jubaland. As one of the first persons to have the opportunity to study this series, it is my intention to try and give a short account of their extension and mode of occurrence. As, however, all my field notes and specimens are at present in England for the purpose of identification and detailed study, it will be remembered that this account can only be of a general descriptive tentative nature. To an observer standing on Dandu, one of the eastern points of the Abyssinian escarpment, and looking southwards, a very striking contrast in scenery is noticeable. To the west are to be seen the characteristic ‘ monadnockic ’ hills of gneiss jutting out of the bush-clad plains, whilst to the east a low, gently undulating scarp is observed, behind which the country dips gently to the S.E. The latter is approximately the western outcrop of the sedimentary rocks, and occurs on the western section of the Gurre country. The rocks can be easily divided into a limestone and sand- stone series, both of which are generally flat-bedded or dip gently to the S.E. The Sandstones These are massive and fine-grained, of a deep reddish colour, showing occasionally striking patterns of bands of colours varying from black and purple to a light ochre. This is very noticeable at Dakka Dima (meaning red rocks) on the W.N.W. of Eil Wak. They suggest an origin from the decomposition of the ancient gneisses and schists. The sand- stones stretch as a broad band across the Gurre country eastwards to the Juba River, thickening to the N.E., but they do not outcrop northwards on the Daua River until Beila is reached. Southwards they extend below Serenli and seem to disappear N.E. of Salugli. BUNA : TYPICAL., MON ADNOCK. TYPICAL SMALL KOPJE OF PINK GRANITOID GNEISS OCCURRING AS OUTLIER OF ABYSSINIAN ESCARPMENT. JIMALE : THE UPPER SANDSTONES. DAUA VALLEY, NEAR MUDDO. NORTHERN FRONTIER— -KENYA COLONY 29 Although a considerable search has been made, off and on, during a period of over three years, very few fossils have been found. A few were found near Jimale on the western outcrop and are at present being identified. The occurrence is worthy of note, and their determination is awaited with interest. The topography of these rocks is characteristic, as they form typical table mountains, possessing the characteristic scarps with flat plateau tops ; sometimes they are gently inclined and have long dip slopes. These are very noticeable in the Marehan country. Another interesting feature amongst the sandstones is the Eil Wak basin, containing gypsiferous beds. These were first noticed and described by Dr. J. Parkinson. This area consists of a soft, greyish-white cal- careous limestone containing numerous spear-shaped crystals of gypsum varying in size to five or six inches long. This is overlain in parts — noticeably to the north — by a hard, un- fossiliferous, white limestone. In spite of numerous searches no fossils or even traces of them were found. The basin has a diameter of approximately twenty miles, and is surrounded by sandstones, with a possible outlet to the S.E. The area is characteristic of a desiccated salt lake, and' is probably part of a much larger lake, as suggested by J. Parkinson (cp. Abs. Proc. Geological Soc., No. 980, 1915). The area is valuable as it contains over 100 wells which are tunnelled down to approximately 80-40 feet deep. The water is highly prized by the Gurre, who own them, owing to its remarkable saline properties. These are characteristically developed on the Daua River, where they consist of hard unfossiliferous limestones inter- calated with muddy limestones and shales. V\ The Limestone Series 30 SEDIMENTARY ROCKS— KENYA COLONY The first typical section examined was at Muddo Erri on the Dana River and the following sequence was noted. Hard clinK Limestone Rubbly Limestone fu.ll of "RKyncKonellids ^TeTebratu-L IB Hard compact Limestone.. Very few fossils C 1 ° 1 O I o t O ( O l o l o I o I o 1 o I o C ( QlQ(o(q(0|c7\0 | o | O I o | Rubbly muddy Limestone I "i 1 o “ i * o °i o ° o D l o I u l o | o ( I O 1 O t a \ Cl I o ( tj ( o ( j Oi ( ^ Hard ^frey Limestone with bands O of -rubbly Limestone Blue shaly Li mestone Rubbly Lirnesfone Tossils very numerous ^ H ard blue - ^rey Li me stone H Diagrammatic. This section is of further interest, in that the beds seem to have undergone gentle flexuring, as many of the fossils found showed marked signs of crushing. In bands B and G many fossils were found which are awaiting identification. The fauna is very suggestive of the Mediterranean facies in Jurassic times. Further sections were studied in various places, but those found on the Juba, particularly at Salugli, are worthy of brief notice here. The sections are small and contain practically only muddy limestones and shales. In the latter, remains of ammonites were found which are of great interest, as they must be similar to the remains of ammonites found by J. Parkinson on the other side of the river at Kukatta (cp. Abs. Geol. Soc., No. 980, 1915). VARIATION IN EAST AFRICAN BUTTERFLIES 31 Mention must also be made of the profuse numbers of belemnites to be seen on the caravan track which runs north of Serenli at Mata Warseisa. They are of a sulcate form. Conclusion On the completion of the identification of the various fossils found, the exact age of this large development of sedimentary rocks should be determined. For the moment it is submitted that the narrow coastal strip of sediments broadens out and extends to at least 40J° long. E. These run northward across the Daua River, pro- bably without interruption, through Italian Somaliland to British Somaliland. The writer visited the latter place about a year and a half ago and was much struck by the similarity in lithological features of the Bihendula and Daua limestones. There was also a marked similarity in the sulcate ammonites found. Economically these rocks might prove of value as a source of oil, but this would seem to depend largely on the results of the investigations recently carried out at the Daga Shabell oilfield in British Somaliland. It is noteworthy that the Shabell sandstones have been identified as Jurassic age. GEOGRAPHICAL VARIATION IN EAST AFRICAN BUTTERFLIES. PART II By K. St. A. Rogers, F.E.S. NYMPHALIDiE Most species of Precis are more interesting for seasonal than for geographical variation. It is true that the African forms of P. orithyia and P. hierta differ to some extent from the Oriental species, and form races of those species which are generally smaller and darker, but that is only to be ex- pected. There is, however, one species, P. elgiva in East Africa, which is a form of the western P. terea which has some 32 GEOGRAPHICAL VARIATION interest. The former has a narrower, central fulvous band across both wings than the latter, whereas, in most cases, the western forms differ from the eastern- forms in their more extended dark markings. P. terea reaches as far as Londiani, but in Nairobi P. elgiva is found, and shows no tendency to approach the type form. It seems, therefore, that this is another case in which the Rift Valley forms the boundary between the two races. Hyipolimnas ( Euralia ) dubius is particularly interesting from the point of view of geographical variation. The western form exists under two forms, H. dubius, with black, white-spotted fore- wings, which mimics Amauris, such as A. jpsyttalea, and H. anthedon, with large, white patches on the fore-wings, which mimics A. navius. These have been proved by breeding to belong to one species, though the models are perfectly distinct. In East Africa, also, the species exists under two forms similar to the two western forms, namely H. mima, corresponding to H. dubius, and H. wahlbergi, corresponding to H. anthedon. The latter has very much larger, white patches in both wings than H. anthedon, precisely as A. dominicanus, the eastern subspecies of A. niavius, has larger patches than its western representative. However, A. jpsyttalea only extends into the Nyanza province of Kenya, and in the rest of the country there are two jother species of Amauris, i.e. A. echeria and A. albimaculata, which resemble each other so closely that they can only be separated on close examination, and both extend to the western parts of Uganda. In both these species the white spots on the fore-wing are much smaller than in A. jpsyttalea and its allies, and it is a remarkable fact that H. dubius mima also has the spots on the fore- wing much smaller than in H. dubius ; so that the two forms of the same species on coming into East Africa vary in exactly the opposite direction, one by an increase in the white markings and the other by a decrease. In the region around Victoria Nyanza all forms seem to be found and no doubt intermediates occur; but in the forests near Nairobi the eastern forms alone are found, though they are not common, and they also occur together in the Ukamba and Teita countries, but in the coast district, IN EAST AFRICAN BUTTERFLIES 33 during many years collecting. I never met with the mima form, though the wahlbergi form was much commoner than elsewhere in the colony ; and it is significant that the model of this form, A. albimaculata, is also absent from this district, and that as soon as it is found, i.e. in the Teita district, H. mima also appears. I do not think that it will be of importance to go into the small differences which exist be- tween the races of several other butterflies of this group, as they require careful comparison in order to be appreciated. However, the genus Pseudacrcea contains species in which the difference is marked. Ps. boisduvalli is a red and black species which is a well-known mimic of the western Acrcea egina . The eastern form Ps. trimeni does not, however, resemble A. areca, the eastern form of A. egina, so closely as it resembles A. acara, the eastern form of A. zetes ; in both species the eastern forms are characterised by the greatly extended red markings, but in A. acara there is a conspicuous subapical orange bar, not present in A. areca, which is gener- ally found in Ps. trimeni. At the same time it should be remarked that the latter is very variable in East Africa, and some specimens approach the western form somewhat closely. The eastern form extends only as far as Nairobi, and is often less rare than the western form. Charaxes pollux. — The eastern form gemimus differs from the type form in the presence of yellow submarginal lunules on the hind wing. It is to be found on the Taita hills and on Kilimanjaro, whereas the type form persists unchanged from the west coast as far as Nairobi. Charaxes protoclea occurs as far east as Kavirondo, and is replaced in the coast district of Kenya by Ch. azota, which has a wider marginal border of orange in the male, and a much broader white central band in the female. The western Libythea laius also reaches Nairobi, but is replaced on the coast by the very similar L. labdaca. Lycjenid^ and Pierin.® Many of the Lycsenidse run very close together, and seldom exhibit much geographical variation as regards western and 84 VARIATION IN EAST AFRICAN BUTTERFLIES eastern forms. However, Telijpna carnuta, which is found as far east as Uganda, is replaced in the coast district by T . rogersi, with more extensive orange-brown markings, and Myrina silenus, which reaches Kavirondo, is replaced at Nairobi by N. ficedula, which is a common species as far as the east coast and also South Africa. The Pierinae are more remarkable for local and seasonal variation than for geographical races, and there is also a great deal of individual difference, so that with our present knowledge it is not easy to recognise geographical variation in most cases. Perhaps the clearest case is that of Mylothris narcissus of the Taita hills, which is replaced at Nairobi by M. jacksoni. Papilionid^e Pajpilio rex of Nairobi is replaced in Uganda by the form mimeticus, which is darker, and on the west by the form schultzei, which is quite without the red mark at the base of the fore-wing. In Kavirondo there occur intermediates. P. dardanus is very interesting from the point of view of geographical variation as it is for its mimetic forms. There are forms with non-mimetic females in Madagascar and Abyssinia. Besides these the races recognised are cenea from South Africa, tibullus from the east coast (hardly separable from cenea), polytrojphos from the escarpment in Kikuyu, and dardanus from Uganda westward. At Nairobi the form is tibullus, probably influenced by intermixture with polytrojphos. The western males have only two or three large submarginal black spots on the hind wing, but those from the coast of Kenya have a very wide black sub- marginal band, which is much less pronounced at Nairobi, though it is very variable. On the other hand the Hijppocoon females have the outer half of the hind wing black on the west coast, but on the east coast the black band is very greatly reduced, following the model Amauris niavius. This is one of the clearest cases known, as it is most improbable that climatic conditions should result in less black in one sex and more black in the other sex of the same species. It will be noted that in the large majority of the species DEATH’S-HEAD MOTH IN BEEHIVE 85 mentioned there is a progressive diminution of the black or fuscous markings from the west to the east, but there is much difference in the distance penetrated by the western forms, some stopping at the lake and others reaching Nairobi. DEATH’S-HEAD MOTH IN BEEHIVE (To the Editor) The following notes may be of interest to members. A swarm of bees have taken up their abode in my house, which is a wood and iron building. The bees have got in between the wooden wall of the dining-room and the outside iron. Exactly opposite the nest is a sofa, where I usually sit and read in the evenings. From my seat I can distinctly hear all that is going on in the bees’ nest ; the bees keep up a buzzing sound, which ranges from a high-pitched squeak to a booming roar. One night a most unusual noise started up under the eaves and proceeded to the nest. At first I was unable to guess what it was — it sounded like a bat or large moth flutter- ing about. This noise started every night at 7.80 p.m. and had been going on for a week. I put a strong light outside, shining on to the wall, and waited till the visitor came out, which I found it did in a place where I might, with luck, catch it. After a short wait I could hear it coming ; then, as it came out, a lucky sweep with the butterfly net got him ; it was a cJ death’s-head hawk moth. Shortly after the $ came out and I got her too. Both specimens were nearly perfect, in spite of the knocking about they had received in struggling up and down in the narrow- partition in the wall. On opening their bodies I found they contained about a teaspoonful of honey each. I showed these moths to a native bee fundi, who said at once that he knew it, and that it fed on bees. His idea was that it ‘ caught the bees and ate them,’ and he explained ‘ that the moth eats half the bees in the hive, then the other half fly away and leave the hive.’ One thing seemed very curious, and that was that the bees appeared to be frightened and made no noise while the moths were feeding on the honey. — K. E. Dent. 86 PODOCARPUS TREES NEAR NAIROBI NOTE ON THE OCCURRENCE OF PODOCARPUS TREES NEAR NAIROBI By H. M. Gardner Just outside Nairobi, on Thompson’s estate near the junc- tion of the Ngong and Dagoreti roads, is a very interesting group of trees which probably few people have noticed, and of which still fewer have realised the significance. There are only about twenty-five of these trees scattered over an area of about fifty acres, in the angle between the Kirianugu stream and the Dagoreti road. In addition there is one solitary tree and a few seedlings on the edge of the Forest Reserve, exactly at the junction of the roads, and I am told that there is one other specimen about six miles away, on the Mbagathi River, some distance above the old camp. The trees are apparently identical with Podocarpus gracilior, but the remarkable thing is that there are no other P. gracilior trees within a hundred miles. The nearest are probably on the northern end of the Aberdare Range. These trees are not recent importations : one is probably at least 150 years old. There is no trace of this species in the neighbouring forests, either in the Ngong Forest on the one side, or ^ the French Mission Forest on the other. There- fore they can scarcely be the remnants of a formerly much larger area of this species. A perplexing feature is that the trees, which are of very varying ages, bear large crops of fertile seed and regenerate themselves in a wonderful manner. I have seen not less than 15,000 seedlings at one time beneath one tree alone, but these all get destroyed by natives cultivating shambas. In view of this great reproductive power, why has the species not become distributed over a much greater area and spread into the neighbouring forests ? It must imply that the species has not been established in the locality for a very long period. Possibly the oldest of the existing trees is one of the original ones, and all the other trees in the neighbourhood have descended from it ; but as has been stated above, this tree appears to be not less than 150 years ANNUAL REPOET, 1921 87 old, and the question as to where it came from and how it got there still remains. Many thousands of seedlings have been raised by the Forest Department from the seed of these trees, but it is feared that the original group will disappear, as the land on which they stand has been sold for residential sites. The dimensions of the largest tree are 10 \ feet girth at breast height, and 80 to 90 feet in height, and the altitude of the locality is about 6000 feet. In other districts P. gracilior is usually found at considerably higher altitudes. It has been reported recently that there is a similar Podo- carpus on the Ithanga Hills and on Donyo Sabuk. If this is correct, it may be that the Nairobi Podocarpus is not P. gracilior, but a new, closely-allied species which grows in hotter, drier localities than the true P. gracilior. But this would not solve the riddle as to how the isolated group of Podocarpus came to be growing on the Dagoreti road. THE EAST AFRICA AND UGANDA NATURAL HISTORY SOCIETY Annual Report for Year 1921 The year under review marks a period of transition in the affairs of the Society, and the closing months of 1921 should be looked upon as the real starting point of its activities as an Institution worthy to take its place with other scientific bodies of the world. It had long been evident that the rented building in which the Society housed its collections was far too small to allow of a proper display of exhibits, and that an increase of accommodation was a necessity. It was a step in the right direction when, at the last Annual Meeting, permission was given the Committee to enter into negotiations with the landlord for an extension of accommodation. These negotiations, however, proved abortive, and the Committee, after careful consideration, decided that all funds available for building purposes should be devoted to the erection of the first block of a permanent Museum on the Society’s plot. 88 ANNUAL REPORT, 1921 Arrangements were accordingly made with Messrs. Harrtz and Wood to this end. It was found that the funds avail- able were not quite sufficient to meet the cost of the build- ing as specified, and these two gentlemen most generously offered to advance the difference between the money on hand and the actual cost of the building at ordinary bank rate. The building was put in hand in July, and was sufficiently far advanced by November to allow of a transfer of the Society’s collections. A considerable saving on the cost of the building has been effected by the generous donation by Mr. Hutchinson of all lime and sand needed in the building, and by the very great reduction in price of timber conceded to the Society by the Equator Saw Mills. Exhibits. — The activities commenced at the latter part of 1920 were indefinitely postponed pending removal into the new building, and no new work was undertaken. Since the removal, however, work has progressed, and several additions have been made to the Small Mammal and Bird collections, whilst the Insect exhibits have also received attention. Curator. — Mr. A. F. Gedye acted as Curator from January to May, and during his period of office particular attention was given to the various collections of Insecta, and various groups which had been submitted to experts at home for identification were gone over and incorporated in the cabinets. During the removal, and for a period of a month, Mr. R. L. Harger very kindly gave his services, and it is largely owing to his efforts that the exhibits were safely transferred and rearranged. Publications.- — One Journal was published during the year, of reduced bulk, and without illustrations. It is a matter for regret that this curtailment has come about, but it was necessary to keep the cost within the limits of the funds available. It is hoped that this state will be rectified in the next number of the Journal. No donations to the Illustration Fund were received during the year, and we would take this opportunity of once again bringing this Fund to the notice of members. ANNUAL REPORT. 1921 39 It must not be forgotten that the Journal is practi- cally the only link which country members have with the Society, and it is incumbent on those more favourably placed to see to it that the Journal is made as attractive as possible. Members’ Meetings. — It is to be regretted that no members have volunteered to give lectures, and it has been impos- sible to arrange ordinary meetings accordingly. General Remarks. — The Society is still without Government recognition, but we have hopes that this will be rectified in the near future, especially so in view of the fact that the Society’s collections are used by members of Government Departments. The Small Mammal collection has been of considerable help to the Medical Department in deter- mining the distribution of certain rodents suspected of being implicated in the spread of plague ; furthermore, there is little doubt but that the Museum will become a teaching centre, and as such should be in receipt of State aid. Printed in England at The Baleantyne Press Spottiswoode, Ballantyne & Co. Ltd. Colchester , London & Eton 05 CO rH rH 05 O rH CO 05 CO o o o o BO l> CO o o o o o o CO CDOOO 00 CO o Eh 03 O CO CO O tH rH O 00 CO CO Hfrl B0 CO O rfl 00 rH t-H « P> H M Q £ 4 Ck M ft £-1 * * ^ ••••••••• ^ o co h ° ® © > © ^ .ft eg i : ; ...... -4 . . j ...... CD <1 "O' ^ . i? . » bo Q ft E- *2 © ft * ^ . bS 43 • r4 • p : h P ^ 0 :3J : . : ft Soph r) O o ■SS^td^oms 42 4D CS^CDOOTrH^ 17 -4 CO 1 — I d °2 d , 4h d 4 ^ W _ Jh . oh ^ s P P © ° -243 S a^,2 9«h.8j° s ® 2 ft ^ ^ ^ ^ O d m ft © bo d g K«o|| oa°§,gg° > J'3 fl o 8 Ji g.SP a-S > ft ^ ft o ft cc ft ft P PM nd 3 43 Q B0 O i> O O O tH O CO fk Q co 43 m o tH 23 g a j tH (M : 05 fk 4 4 4 M 02 ft 4 . ft P>' The Journal of the East Africa and Uganda NATURAL HISTORY SOCIETY. NOVEMBER, 1924. No. 20. (Tonknts: Editorial ... ... Papilio dardanus, the most wonderful Butterfly in the World. By Prof. E. B. Poulton, f.r.s., Etc. (part I.). Illustrated Notes on a species of CHALICOTHEEE from Uganda. By (the late) G. W. Andrews, d.sc., f.r.s. Illustrated ... Native Folk Lore (No. I.). By S. V. Cook Page. 3 4—22 22—23 24 ft 19 '17 5*60° Editor of Dr. Y. G. L. van SoiS^iiY Additional copies to Members, Shs. 2/-; to non-Members, Shs. 3/50. PRINTED BY THE EAST AFRICAN STANDARD LTD. All Eights Ee served. The Journal of the East Africa and Uganda NATURAL HISTORY SOCIETY. November , 1924. No. 20. PATROLS: Sir EDWARD NORTHEY, g.c.m.g. Sir E. J. JACKSON, k.c.m.g. c.b., etc. Sir E. P. C. GIROUARD, k.c.m.g., r.e., d.s.o. Sir HESKETH BELL, k.c.m.g. PRE38DEMT: HIS EXCELLENCY Sir ROBERT CORYNDON, k.c.m.g. V8CE=PRESIDiENT§ : Hon. E. B. DENHAM, c.m.g., b.a., oxon. A. B. PERCIYAL, Esq., f.z.s., m.r.o.u. EX. COMMITTEE : E. BATTISCOMBE, Esq., f.l.s., assoc, arbor, soc. Rev. CANON St. A. ROGERS, m.a., oxon, f.e.s,. Capt. K. E. T. CALDWELL, b.a., cam., f,.z?.s., f.r.g.s. Capt. A. T. A. RITCHIE, m.b.o.u., f.z.s. C. J. WILSON, M.A. , M.B., B. CH, , M.R.C.S., L.R.C.P., M.C. R. F. MAYER, Esq., c.c.i., m.i.j. A. J. JEX-BLAKE, m.d., f.r.c.p., ld. C. J. J. T. BARTON, m.a., cam., f.r.a.i. HON. TREASURER: Rev, J. WElSLiEiY HUNT, HON. SECRETARY: kY. G. L. van SOMEREN, l.r.c.p.&s., l.r.f.p.&s., l.d.s., f.l.s., M.B.O.U., C.F.A.O.U., F.E.S. , C.M,Z.S,, &C, HON. EDITOR OF JOURNAL: Dr. y. G. L. VAN SOMEREN. 2 PARENT H X form ' hippocoon . OFFSPRING DANAINF MODELS )rm hippocoon. Amauris niavius dominicanus Danaida ( Limnas ) chrysippus g % A mauris albirnaculata ^ win cenea Amauris echeria cf cenea Plate I. Frontispiece. Mrs. P. P. Whelpley, pnx. Andre & Sleigh, Ltd. All figures are about | of the natural size. Examples of the mimetic female forms of Papilio dardanus , subsp. cenea , bred in 1906 from a hippocoon form of female: Durban, Natal. The female parent and the Danaine models from the same locality are also figured. EDITORIAL. As several members have expressed regret that the last number of the Journal was of such small bulk, it is perhaps advisable to explain the reason, and outline the recent decision of the Committee regarding the Society’s publications. At a meeting of the Committee held in July, it was considered advisable, that, in order to retain and stimulate interest in the Society, the Journal should be published more frequently. To attain this end, it was decided to print the Journal locally, and to issue it quarterly. As the funds of the Society are insufficient to issue a bulky number, every three months, it was agreed that each number should be of reduced bulk, the yearly aggregate to be equal to, or greater than, the old nine-monthly publication. Journal No. 19 was the first to be issued under this new arrangement, and No. 20 is presented herewith. We would take this opportunity of reminding members that the hopes of the Committee cannot be successfully attained without the ready co-operation of all. Manuscripts on any Natural History subject of local interest are always welcome. PAPILO DARDANUS. The most Interesting Butterfly in the World. Prof. E. B. Poulton, f.r.s. (Illustrated.) Naturalists at Nairobi are fortunate in that they live in a district which is pre-eminent in the light that is thrown on the past history and origin of the varied forms of this most remarkable butterfly. The importance and interest of the Kikuyu and Nairobi examples will, however, be best understood if introduced bv an account of the finished product, to which they supply essential preparatory stages. Of the three plates by which this account is illustrated (1) originally appeared in the Transactions of the Entomological Society of London (1908, pi. XXIII.) and is here reproduced by kind permission of the Council, while (II) and (III) were first published in the Proceedings of the Second Entomological Congress at Oxford in 1912. “ Trans.” and “ Proc.” with no further addition, except the year and page, refer to the publications of the Entomological Society of London. Nearly every note, or paper, quoted in the following pages can be consulted in the volumes of “ Hope Reports ” in the possession of the East Africa and Uganda History Society. The Discoveries of Poland Trimen. Henry Walter Bates laid the foundation of the theory of mimicry in 1862 when his great memoir, with its curiously unrevealing title, ” Contributions to an Insect Eauna of the Amazon Valley,” was published by the Linnean Society (Trans., Vol. XXIII., p. 495). A. R. Wallace, in the same Transactions (1866, Vol. XXV., p. 1) showed that Bates’ interpretation of the complex resemblances between distantly related butterflies held good in the Oriental Region no less than in Tropical America. Finally Roland Trimen, in the same publication (1870, Vol. XXVI., p. 497) applied the theory to African butterflies and especially to the female forms of PapiJio dardanus. At the time when Trimen wrote this memoir the name dardanus was not recognised, the male butterfly resembling, but not exactly like the examples shewn on PI. II., Fig. I., or PL III., Fig 3, being then known as merope , described from West Africa, by Cramer, in 1777. 4 Plate II. Alfred Robinson, photo. Nearly 1 of the natural size. Andre & Sleigh, Ltd. Papilio dardanus cenea, the S. E. African Sub-species of P. dardanus with the four Danaine models of its female forms. The proof by breeding that the mimics are one species. (Near Durban, Natal, 1906, G. F. Leigh.) Later on it was found that this same male had been described and figured as dctrdanus in the previous year, by Brown. (III. Zool., p. 52, pi. XXII., 1776.) Although no locality is given, the excellent figure left no doubt that Brown’s dardanus was described from a West African male, and that the name merope had to be sunk. Trimen was familiar with the South African form of dardanus and he also examined every specimen he could find in British collections. The result was always the same; the long-tailed swallowtail “ merope ” was always a male and there was no female to put with it. Trimen similarly examined all the specimens he could find, of a tailless Papilio described by Stoll as cenea (PL I., figs. 4a, 5a, PI. II., figs. 9, 10), a mimic of the Danaines, Amauris albimaculata (Fig. 4 on Pis. I. and II.), and A. echeria (Fig. 5 on Pis. I. and II). The examination of all the cenea (about 25) then known in collections revealed nothing but females. Trimen next studied the fourteen specimens, then known, of the tailless Papilio hippodoon, described from West Africa by Fabrieius, and later as westernianni, by Boisduval. The S.E. African form of this black and white butterfly is represented on PI. I., figs, 1, 2a; PI. II., figs. 6, 7, and its Danaine model Amauris niavius dominicanus in Fig. 2 on Pis. I. and II. Here too only females of hippocoon were found. He finally passed in review the seven specimens, which were all he could find, of the tailless Papilio trophonius, described by Westwood, and suggested as the possible female of cenea — shewn above to be itself a female. Trophonius is represented on PI. I., fig. 3a; PI. II., fig. 8, and its Danaine model Danaida chrysippus , on Fig. 3 of Pis. I. and II. All seven were females. In arriving at the conclusion that cenea, hippocoon, and trophonius were three forms of “ merope ,” modified in mimicry of three Danaine models — an astonishing suggestion at the time — Trimen was aided by a consideration of the Madagascar Papilio meriones, Felder, with a male very like “ merope ” (compare figs. 1 and 3, PI. III.), and a tailed female (fig. 2) whose pattern resembles the male except for a pronounced black mark starting at the base of the fore -wing costa and almost crossing the cell. Concerning this feature he wrote : — “ In the broad black costal bar of the fore-wings which distinguishes the female in Madagascar, regarded in relation to the hind-marginal black border, it is not difficult to recognise the material upon which natural selection might gradually work, to the ultimate production of a “ Danaidiform ” butterfly like Hippocoon or even Cenea. 5 How entirely this prediction is justified will appear in later pages; and, indeed, it was not without confirmation at the time, confirmation provided by a fourth form of female, dionysos, of which three examples in Hewitson ’s collection were known to Trimen. This female form, well-known but rare on the West Coast, is very variable in that very feature of the female memories which Trimen recognised as the foundation of the mimetic pattern; and as Trimen points out, the three specimens of dionysos exhibited two very different degrees of transition in this respect between the meriones female and the mimetic hippocoon. Trimen’s conclusions were received with incredulity. Thus W. C. Hewitson wrote: — “ P. merope, of Madagascar, has a female the exact image of itself ; and it would require a stretch of the imagination, of which I am incapable, to believe that the P. merope of the mainland, having no specific difference, indulges in a whole harem of females, differing as widely from it as any other species in the genus and he went on to compare merope wtih certain South American swallowtails of which the sexes had recently been recognised, reducing four supposed species to two. Of these pairs, at length united, he said: “ Though much unlike each other, there is quite sufficient resemblance not to shock one’s notions of propriety.” A little later Hewitson received from Rogers, his own collector, then in the Island of Fernando Po, Papilio merope and P. hippocoon, taken by him in copulation; another illustration of the saying that “ truth is stranger than fiction.” (E.M.M., Oct., 1874, p/113.)* My distinguished predecessor, Prof. J. 0. Westwood, was also at first incredulous, but became convinced when he received from Mr. Mansel Weale, the males and some of the female forms bred from larvae feeding together in his South African garden. I well remember as an undergraduate nearly fifty years ago, Prof. Westwood pointing out the extraordinarily interesting comparison between the Madagascar and the African females of dardanus. I must not dwell at too great length upon the historical aspect of the subject, but the continental race of dardanus with male-like females demands some attention. * For an account of the controversy see Trans., 1874, p. 137, 6 The Abyssinian and Somali Race, P. dardanus antinorii, Oberth. Many years after tlie appearance of Trimen’s original Memoir, two additional races of dardanus with male-like females wer© described by M. Charles Oberthur (whose recent death is such a grievous loss to Entomological science) — antinorii in 1883, and humbloti , from the Comoro Islands, in 1888. The former is of the highest interest in relation to the evolutionary history of dardanus on the mainland of Africa. With two exceptions all the known females of antinorii are male-like. These two astonishing specimens were described and figured by Kheil (Iris., III., p. 335, figs. 1 and 2, 1890). Roth are mimetic but differ from all other mimetic females of dardanus in the possession of long “ tails ” to the hind wings. The pattern of one, named ruspinae, much resembles that of the chrysij) pus-like trophonius or rather trophonissa, of the other, niavoides , that of the niavius- like hippocoon. Coloured representa- tions of both are given by Dr. Eltringham in Figs. 4 and 8, PL X of his “ African Mimetic Butterflies ” (Oxford, 1910). (This plate is entirely devoted to the forms of dardanus and should be consulted in connection with the present paper.) The most probable explanation of the presence of these two extraordinary specimens, is, I believe, that they are hybrids between the female antinorii and a wandering male from further south, carrying the factors for the females trophonissa and hippocoon. (Dr. van Someren’s recent discovery of a form of dardanus at Marsabit, S.E. of Lake Rudolph, with kippoc'oon-\ike and c)enea<- like mimetic females (Proc., 1924, p. xxv.) supports this conclusion, and suggests that collections from still further north, leading on into Abyssinia, would be of the greatest interest.) In one outstanding feature, the great size of the sub-marginal white spots of the hind- wing, the two specimens are alike, suggesting the probability that they were the offspring of the same female. Being unable to consult the paper at the moment, I have been kindly helped by Capt. N. D. Riley, who informs me that Kheil gives the locality as Korata on Lake Tana, and quotes Dr. Stecker’s statement that the species was one of the commonest in the district, “ so little shy that they could be picked off the flowers with the fingers.” Nevertheless only four females were obtained — ruspinae , niavoides, and two male-like. 7 I have recently examined the females of antinorii in the British and Tring Museums, and found to my surprise that in a considerable proportion of them, the tails are much reduced. In one female out of seven at Tring this reduction is accompanied by an extension of the dark mark beyond the cell of the fore-wing, conspicuously into area 2, slightly into 3. Two interpretations suggest themselves. The reduced tails and prolonged costal bar may be traces of earlier hybridization with southern races diluted by prolonged interbreeding with pure antinorii ; or these features may be due to the spontaneous appearance of variations such as that which led to the original development of a mimetic pattern. It is in favour of this latter hypothesis that M. le Cerf has recently described a Madagascar female in the Hill Museum, Witley, with a similar extension into area 3 on the undersurface (Bull, Hill Mus., Yol. I., No. 3, p. 379, PI. I., fig. I.). He also describes on the same page a meriones female in the Paris Museum, with the right-hand tail reduced to a rudimentary projection, but as the left is normal I do not think that much significance can be attached to the specimen. There can be no doubt that such variations are extremely rare in the Madagascar race as compared with the Abyssinian. Extensive collections from various parts of Abyssinia and Somaliland would probably throw much light on this fascinating problem. Antinorii is evidently common in the Goolis Mountains, to the south of Berbera, a locality from which my friend Sir Horace Byatt sent me a fine series of males, but unfortunately no females. The comparison of these Somali females, if they could be collected, with those from Abyssinia would probably be highly instructive. Planemoides, the Mimetic Female form with an Acraeine Model. All the mimetic females hitherto mentioned resemble Danaine models, but a most interesting addition was made in 1903, when Dr. S. A. Neave recognised (Proe., 1903, p. xli.) in a collection made by Major Wiggins, C.M.G., at the N.E. corner of the Lake Victoria Nyanza, a female form mimicking the Acraeine butterfly Planema poggei (also a little further west, the male of PL macarista*). This new form was named planemoides by Trimen in the same year (Proc. 1903, xxxviii-xl.), and was figured by Dr. Neave in Trans., 1906, PL X., fig. 8. Planemoides and its model extend S.W. to Angola, and an Oxford specimen of the mimic bearing the label “Angola, Rogers: 1873“ was probably received by Prof. Westwood from his friend Hewitson, to become thirty years later one of the types of Trimen’s description. The other type, from the Kavirondo-Nandi district, has also been kindly presented to the Hope Collection by Mr. C. W. Hobley, C.M.G. 8 Plate III. meriones, with non-raimetic female : Madagascar. Meriones female Meriones male Escarpment near ^j<^flP^Nairobi Polytrofihus rm 6 Polytrophus females of 4 forms. Hippocoon form Alfred Robinson, photc Andre & Sleigh, Ltd. Rather over half the natural size. The non-mimetic ancestor of Papilio dardanus (merope) from Madagascar, and transi- tional forms, shewing the origin of mimetic females, from the Kikuyu Escarpment, near Nairobi, British East Africa (6,500 — 9,000 ft.). Indisputable proof of the soundness of Neave’s and Trimen's inference that planemoides is one of the female forms of dardanus was obtained later on by breeding experiments, but before speaking of these and many others by which Trimen’s original conclusions have been confirmed, it is necessary to describe briefly the distribution of the races of dardanus on the mainland. The African geographical races or sub-species of P. dardanus. Five races in addition to antinorii are recognised by Dr. Karl Jordan (Zeitsch f, Wissenschaft, Zool. Bd. lxxxiii.). The dis- tinguishing characters relied on are the black markings of the male hind- wing and the form of the male genital armature. Dr. Jordan concludes that these differences of form are not such as to prevent interbreeding along the line where the area of one race meets that of another, and there is strong evidence that such interbreeding takes place. The following are the races distinguished by Dr. Jordan, to each of which I have added the commonest and best-known female forms : — 1. Papilio dardanus cenea, Stoll. S. Africa, northwards to Delagoa Bay, completely transitional into the next subspecies, both geographically and in racial characters. The male and chief forms of female are represented, with the models of the latter oni Pis. I. and II. The hippo coon female of this and the next subspecies, differing from the West Coast form described by Fabricius, has been named hippo coonoides by Haase, the chief distinction being the larger white area on the hind-wing, in mimicry of the eastern race of Amauris niavius, which also has a larger patch than the western race and has been called dominicanus by Trimen, 2. Papilio dardanus tihullus, Kirby. Delagoa Bay northward to the Mombasa district. Westward it is completely transitional into polytrophus in the Nairobi area, and northwards probably into dardanus, the fused races spreading to the Abyssinian border and perhaps interbreeding with antinorii. Typically tihullus has by far the most heavily marked male of any subspecies. The female forms are very similar to those of cenea. 3. Papilio dardanus polytrophus, Jordan. Aurivillius defines the area of this race as the high-lying districts of the interior of Tanganyika Territory and Kenya Colony at the South and East sides of Victoria Nyanza, extending as far north as Kavirondo. The great majority of the known specimens are from the Kikuyu Escarpment and Nairobi. Typically it is a small high mountain form with a male having the pattern of the subspecies to the west of it, but the armature of tihullus, to the east. Such a male from the Kikuyu Escarpment (6,500-9,000 feet) is represented on PJ. III., fig. 3, and some of its female forms from the same locality in figs. 4-9. 9 At Nairobi it is larger and tlie males often far more heavily marked, due without doubt to interbreeding with tibullus. The female forms are extraordinarily variable and include wonderful transitional stages leading from the male-like female to the fully- formed mimics. They will be considered in detail in a later paper. 4. Transitional. — Dr. Jordan here places the forms from "Uganda and especially its eastern border, which, in the* structure of the male armature are transitional between the eastern and western races, although in other respects — size and pattern — similar to the latter. Aurivillius in “ Seitz ” does not separate these transitional forms from dardanus dardanus , the succeeding race. 5. Papilio dardanus dardanus , Brown. — The transitional forms spoken of under 4 gradually die away as we proceed westward in Uganda and Tanganyika Territory west of the Victoria Nvanza, being- replaced by dardanus dardanus, a race which spreads to the West Coast from Sierra Leone to Angola. These western specimens are larger than those of the other subspecies, the superiority being especially marked in the Congo area. Dr. Eltringham has shown that the pattern of the males from Fernando Po approaches that of the male meriones of Madagascar on the opposite side of Africa (Proc. 1916, p. xciii.). The predominant female form of dardanus dardanus, especially on the West Coast, is hippocoon. The western form of trophonius has been named trophonissa by Aurivillius, being distinguished from the eastern form by the greater extent of orange in the fore-wing and its entrance into the cell. It is everywhere present in the area of this race, but everywhere relatively rare. Not uncommonly the orange colour appears in the subapical fore-wing bar, so that all the markings are orange — the form niobe of Aurivillius. The corresponding eastern form named salaami, by Suffert, is rarer relatively to trophonius than niobe to trophonissa, the latter being probably benefitted by its resemblance to an Acraeine model Planema tellus. The cenea female is common in Uganda, where its models, especially Amauris echeria, are abundant, enters the eastern fringe of the Congo forest, but disappears at some unknown point, before reaching the coast, although a model is known but apparently not commonly, on its southern tropical section. Planemoides is one of the chief female forms of Uganda, extending with its model to Angola. Dionysos is the interesting primitive form mentioned as hitherto only known from the West Coast. * 10 6. Papilo dardanus antinorii , Oberth. — This race has been already sufficiently dealt with except in one point. The males are more lightly marked than in any other subspecies, in this respect approaching most closely to dardanus dardanus and polytrophus . It is important to remember that each of the races 1 — 5, inter- breeds with its neighbours in adjoining areas, as is clearly proved by the intermediate forms abundant along the common boundaries and often spreading far beyond them. Similarly a female form such as planemoides characteristic of one race and mimicing models found in the area of its distribution, may pass, by interbreeding, well into an area of another, where, far removed from its model but probably reinforced by fresh invasions, it may persist as a rarity. It has been already pointed out that antinorii too, probably interbreeds with the race to the south of Abyssinia, and that the two extraordinary tailed mimetic-females may perhaps have originated in this way. Families bred from known female forms of DARDANUS IN VARIOUS PARTS OF AFRICA. It will be convenient to review the breeding experiments which have been conducted with parents from different races, following the order already adopted, but deferring polytrophus and omitting antinorii in which such experiments have never been made. 1. Breeding experiments with the South African P. dardanus cenea:- — The first experiments of this kind ever made with dardanus were those of G. F. Leigh, beginning in the year 1902, when he bred three hippocoonoides females, twenty-four cenea, and eighteen males from a cenea female taken “ in cop.” with “ merope ” near Durban (Trans, 1904, p. 677, PL XXXI.). Later he bred several families from the same female form, as also from hippocoonoides and trophonius, nearly always obtaining a majority of cenea among the offspring and sometimes only this form. In 1923, however, he bred a majority of hippocoonoides in one family, while Miss Fountaine in 1909 obtained nineteen trophonius , two cenea, and sixteen males from the eggs of a tropho?vius female taken near Durban (Proc., 1912, p. cxxxiv.). One of the most striking of G. F. Leigh’s families, from a hippocoonoides parent is illustrated on PI. I., showing the female parent and each female form present in the offspring, together with its model from the same locality. Of these females three were hippocoonoides (fig. 2a), three trophonius (fig. 3a), three cenea, with white spotted fore-wing (fig. 4a), five cenea with the chief fore- wing spot pale ochreous (fig. 5a). The same specimens are shown uncoloured on PL II. This interesting family, which included fourteen males of which one is represented on PL II., fig. 1, is described and figured in Trans., 1908, p. 434, Pl. XXIII. 11 Many families of the S. African race were bred in 1913 by C. F. M. Swynnerton at Chirinda in S.E. Rhodesia: Seventeen families from hippocoonoides parents yielded males and females like the parents; two from cenea parents, one from trophonius, and one from a form recently named natalica by M. le Cerf, all yielded males and a mixture of hippocoonoides with females of the parental form (Proc. 1914, p. lvii.). These results and W. A. Lamborn’s in S. Nigeria (vide p. 13) strongly suggest a mendalian interpretation, the common hippocoonoides form being recessive and presumably mating most frequently with a male carrying factors for the same female form, the three rarer female parents, heterozygotes, (or hybrids), each combining its own dominant form with the common recessive hippocoonoides. Such females mating with the common form of male carrying factors for hippocoonoides , would give the observed mixture of female offspring (Proc., 1914, p, lvii-lxx.). These conclusions were confirmed by Swynnerton’s later experiments at Chirinda (Proc., 1919, p. xxx.). The fact that cenea is much the commonest female in Natal and the S. coast of Cape Colony is explained by the abundance of its models, and the rarity or entire absence of the black and wThite Amauris niavius dominicanus. At Chirinda, the black-and-white model is common, but much less so than the model of the cenea form, and the far greater effect of the former upon the proportion of the female forms is probably due to its extreme conspicuousness. It is to be noted that the locally predominant form may be a Mendelian recessive, as hippocoon or hippocoonoides in most parts of Africa, or a dominant, as cenea (over hippocoonoides) in Natal and Cape Colony. 2. Breeeding experiments with the East African race P. dardanus tibullus. A hitherto unrecorded family received from W. A. Lamborn at Tanga, was reared from eggs laid by a hippocoonoides female, and contained, as at Chirinda, only females of this form and males. z 3. Breeding experiments with the race P. dardanus polytrophus , at Nairobi. It has already been explained that the extraordinarily interesting breeding experiments of Dr. van Someren and Canon St.. Aubyn Rogers at Nairobi will be considered in a future paper. It is, however, appropriate to point out that the Nairobi race of dardanus is by no means pure polytrophus, but often contains a strong element of tibullus, as is proved by the heavy marking present on the. hind- wing of so many males. 4. Breeding experiments with the transitional race of P. dardanus in E. Uganda, Etc. 12 Two interesting families bred by Dr. Carpenter were reared from eggs of females taken in eastern Uganda and just south of it. The first, in 1912-13, from the eggs of a planemoides female captured on Bugala Islands in the Sesse Archipelago, Victoria Nyanza, yielded twelve males, seven hippocoon and three planemoides females, the latter bred for the first time (Proc., 1913, p. liii.; Trans., 1913, p. 656, PI. XXXIX.). The second, in 1915, from eggs laid by a remarkable female combining the patterns of planemoides and trophonissa, taken near Kakindu Hill, 30 miles west of the Victoria Nyanza, and a little south of the Uganda border, yielded six males and two females, one of which was planemoides and the other trophonissa, the western form of the East Coast trophonius. The female parent thus produced the two constituents of its pattern (Proc., 1915, p. lxxxvi., vide also p. 9 of this paper). It may be mentioned here that other, although much less extreme, instance of the fusion of two patterns are well known. Thus the cenea offspring of trophonius may exhibit traces of their parentage in the richer, redder tint of the hind- wing patch, and in modifications of the pattern (Trans., 1906, PI. XVII., figs. 8 and 11, and description). Similarly, when bred from hippocoonoides, the oenea offspring may exhibit marked paleness in the same patch (Trans., 1908, p. 436, vide also PI. I., fig. 4a of this paper). All specimens with such traces of fusion are probably heterozygotes exhibiting imperfect dominance, and would split up into their constituents in the later generations. 5. Breeding experiments ivith the West African race, P. dardanus dardanus,. Seven families wTere bred in 1911-13, by W. A. Lamborn in the Lagos district of S. Nigeria. All the parents were hippocoon, by far the commonest form on the West Goast, and the female offspring were of the same form. The seventh family, reared in 1913* contained besides fifteen males, nine hippocoon and eight dionysos , the latter an interesting and primitive form, well-known but always rare on the West Coast, and bred for the first time on this occasion. The comparison of these, two female forms in the same family provides strong indirect evidence of the influence of selection. The pattern of the nine hippocoon, resembling the well-known model, Amauris niavius niavius, is constant; that of the eight dionysos, unprovided with a model, extremely variable, ranging from a specimen like the type figured by Doubleday and Hewitson in which the oblique bar crossing the fore wing is altogether absent, through a graduated series to one in which it is well developed.* * Proc., 1914, p. lxiii. The parent, 17 female offspring and one male, are represented on PI. 1 of Proc., Linn. Soc., London, 1915-16. The parents of all female offspring of the first, fourth, and fifth families are shewn on PI. XI. of Trans., Ento. Soc., 1913, and Proc., 1912, pp. xii. and cxxxi. 18 The Evolution of the Mimetic Females of “ Papilio Dardanus Further reference to dionysos as a primitive form, in addition to that already mentioned (pp. 6 & 13), was made by Trimen in 1874 (Trans., p. 148), and nearly a quarter of a century later he drew attention to a far more significant specimen in the Hope Collection at Oxford— a female form of tibuUus collected by Lt. Turner at Zanzibar in 1884. Comparing this with dionysos he describes it as “ a much closer approximation to the masculine colouration. . The transverse trace of black in the fore-wing is even fainter . . . and the colour of the wide Tale' spaces and the hind-marginal spots in all the wings is almost exactly the pjale creamy-yellowish tint of the male. . . . There can be no doubt that in this specimen we have a marked case of reversion to the original colouring of the female, but it is unaccompanied by any inclination toward the recovery of the lost tail of the hind- wings.’ 5 (Proc., 1897, pp. lxxxviii., lxxxix. ; Trans., 1906, PL XIX., fig. 1.) Vestiges of hind-wing Tails in some primitive females and the most ancestral mimetic forms. In the address from which I have just quoted, Trimen also expressed the reasonable hope that other transitional females would be discovered “ at some point in the wide territories between Abyssinia and Zanzibar ” (p. lxxxviii.). Only three years later the prediction was abundantly verified by the late W. Doherty, who made a large collection of female forms of dardanus on the Kikuyu Escarpment (Sept. -Nov., 1900, at 6,500-9,000 ft.). The great majority of these specimens are in the Zoological Museum at Tring, but a good series exists also at Oxford and at the Hill Museum, Witley. The most primitive of the Oxford specimens, the type of the female form trimeni , originally figured of the natural size in Trans., 1906, PI. XVIII., fig. 1., is here represented on a reduced scale in PI. III., fig. 6. It will be observed that there is a distinct trace of a “ tail ” to the hind-wing, and it is especially interesting to note that such rudimentary tails are more commonly found in hippocoon and hippocoonoides than in any other mimetic form. In other words the ancestral rudiment is most frequently found in association with the most ancestral of the mimetic patterns. That this is the most ancestral and most easily derived from a male-like pattern such as is borne by the Madagascar female will be made clear by comparing figs. 2, 6, 7, and 8 on PL III. 14 Two West Coast hippocoon in the British Museum possess rudimentary tails (Trans., 1906, PI. XIX., figs. 2 and 3) which are especially prominent in a specimen from Gaboon, and in Lamborn’s and Swynnerton’s breeding experiments the artificial conditions appear to have often caused slight but distinct reversion in this female form. Out of Lamborn’s six families, two included several hippocoon with these traces j(Trans., 1913, PI. XL., figs. 10, 15, 17, 21). One of the families was artificially cooled in the pupal state, but it is uncertain whether this condition produced any of the effect. Still more significant was Lamborn’s seventh family mentioned on page 13. In this family none of the hippocoon offspring exhibited traces of a tail which nevertheless were slightly indicated in some examples of the more primitive form, dionysos. Here too Lamborn exposed some of the pupae to cold but there was no evidence of any effect.* My distinguished friend Prof, van Beinmelen of Groningen has contended in his interesting papers on the origin of the patterns of Lepidoptera, that these tail-less mimetic females, of tailed males are not derived from a form like that of the male, or the tailed female of Madagascar, etc., but are descended, unchanged in this respect, from the tail-less ancestor of the tailed Swallowtails. The facts mentioned in the preceding paragraph are very difficult to reconcile with such a hypothesis, and. a discovery of Lamborn’s furnishes a complete refutation. He has recorded that “ the p;upal wing-cases are the same in shape in both sexes, but whereas, in the male, the tails are readily visible on either side of the mid line on the night before emergence, in the female the space for their reception, though present in an equal degree, is unoccupied by wing-tissue.” (Proc., 1914, lxvii.). It will be observed that the vestigial tails often associated with primitive patterns and colours provide strong evidence against the conclusion that the two Abyssinian females with long tails and fully- developed mimetic patterns (p. 7) are ancestral or in any way represent stages in the evolution of the mimetic females of dardanvs . t The sex of the future butterfly can be ascertained by an examination of the wing-cases by the aid of transmitted light, from about the fourth day, if development is proceeding normally. — {Editor.) During recent experiments, it was found that in cases where the pupae had suffered a severe shock just when the larvae had changed to pupae and were still soft, the resultant butterflies showed distinct traces of male pig- mention varying from a small patch of yellow, to complete male colouration of one, two, three or all the wings. Also, that in cases where there was only slight male pigmentation, tails were present. — {Editor.) 15 The Pale Yellow Pigment of the Male dardanus proved TO EXIST IN THE PRIMITIVE FORM OF FEMALE. Dr. E. A. Cockayne has shewn that the yellow colour of the m&l# dardanus is due to a special pigment wide-spread in both butterflies and moths and one which can always be recognised by its fluorescence (Trans., 1924, p. 1). The parts of an insect’s wing containing this pigment shine with a brilliant faintly bluish light, suggestive of moonlight, when exposed in a dark room to the dark ultra-violet light-rays, most conveniently obtained by the use of a mercury lamp. Such parts stand out in startling contrast against the dark background of the other pigments of the wing. Although the chemical constitution of this pigment has not been determined it is certainly a definite substance; for it can be dissolved out of the wing by acetic acid and the solution fluoresces like the dry substance. At Dr. Cockayne’s suggestion and with his kind help, the pale yellow pigments of the primitive females of dardanus were tested, and Trimen’s conclusions entirely confirmed. The yellow pigment of the female fluoresced like that of the male and is evidently the same chemical substance. When it has been transformed into white as in hippocoo7i- like females, or darkened into orange-brown as in trophonius and trophonissa, it is no longer the same substance and entirely ceases to fluoresce (Proc., 1921, p. xcix.). In the note referred to above it is recorded that the pale- spotted cenea from the Kikuyu Escarpment fluoresced, while the very slightly darker pigment of the same forms from the lower elevation of Nairobi was non-fluorescent ( vide also Cockanye in Trans., 1924, pp. 7 and 8). Later researches on the splendid material received from Dr. van Someren and Canon Rogers, has however shewn that fluorescent cenea commonly occur at Nairobi and in families bred from Nairobi parents, but it is still probable that such specimens occur in larger proportions at the higher elevation. Rogers has observed that the paler, more male-like, presumably fluorescent pigments of cenea appear in the pupa later than the somewhat darker non-fluorescing pigments of the same form, thus supporting the conclusions suggested by the physical test, that the two substances, although closely similar to the eye, are essentially different. Until Dr. Carpenter conducted his experiments and twice bred planemoides from a known parent (p. 13), the only direct evidence that it is one of the female forms of dardanus was founded on a specimen taken in S.E. Uganda (1902) by Capt. T. T. Behrens, R.E., 16 “ the specimen was on the left side a gynandromorph, portions of the male markings and scattered patches of scales being, as it were, let into the female pattern (vide footnote, p. 15). When the butterfly is placed in the path of the ultra-violet rays, the little yellow patch, however small, shines out like a star on the dark background of the non-fluorescent female pattern.” (Trans., S.E. Union Sci. Socs., 1923, p. 73; also Trans., 1906, p. 297, PI. XVIII., fig. 4.) Further ancestral elements in trimeni and other primitive FEMALES OF DARDANUS. The oblique black bar produced by the lengthening of the outer end of the costal mark in meriones (of PI. III., figs. 2, 6, 7, 8) has already been mentioned. In the most ancestral trimeni- like form named dionysoides by Aurivillius, the mark is unlengthened as in the most primitive, and, as it happens, the type form of dionysos. The West Coast form may in fact be briefly summed up as follows : A fore-wing of trimeni pattern, with all its variations but the white pigment of hippocoon; a hind-wing of trophonissa, but with a paler tint. The developing parts of the pattern of both trimeni and dionysos have cloudy edges (dyslegnic) different from the compara- tively sharp outlines (eulegnic) of hippocoon. Another ancestral feature of the pattern of trimeni , often retained by the fully mimetic females, is the trace of the two more or less complete gaps in the black band which is the most prominent feature of the male and un-modified female hind-wing. One of them is opposite to, but a little lower than the root of the tail, and between gap and tail is the largest pale area outside the black band; similarly occupying a corresponding position in trimeni and other primitive females, and often also in the mimetic females, is the largest pair of pale markings in the black border. Furthermore, the strong development of the whole series of these pale markings in the primitive females, e.g., Figs. 7 and 9 of PI. III., is clearly, a much less reduced remnant of the area outside the black band of the male than that seen in the mimetic females, e.g., figs. 740 on PL II. The fact that these markings are paired is due to the internervular streak passing through the remnant of pale ground-colour in each space and cutting it into halves, as is most clearly seen on the under surfaces shewn on the right side of figs. 2a-5a, on PI. I. Traces of the other gap, nearer to the costa or front edge of the male hind wing, are clearly seen on the under surfaces referred to above (vide especially figs. 2a and 4a) and on the upper surface of the trimeni shown on PI. III., fig. 6. 17 The evolution of the hippocoon-like female from trimeni. It is now convenient to discuss the origin of each of the mimetic forms from the transitional females of the Kikuyu and Nairobi districts, following in the first place the order of figs. 2a-5a on PI. I. The evolution of hippocoon will have already become clear from the previous account and the comparison of figs. 2, 6, 7, 8 on PL III. It will, I think, be convenient to speak of the transitional forms leading to it, but retaining the fluorescent yellow of the male, as protohippocoon, which will therefore include dionysoides, trimeni, and any other variety retaining the male yellow pigment and bearing a pattern intermediate between the Madagascar female and the black- and-white mimetic form. The evolution of the trophonius-like form lamborni. The Kikuyu female figured as trophonius on PI. III., fig. 9, is a trimeni with the chief pale yellow area, continuous from fore to hind- wing, almost completely over-spread with an orange flush. The specimen figured is seen to bear a vestigial tail, entire on the left side, broken on the right. All the pale colour is fluorescent. This form, which is well known in the Nairobi district and also occurs rarely in Tanganyika Territory, as far south as Kilosa (Proc., 1922, p. xlii.) has been named lamborni (Trans., 1917, p. 335). It bears the same relation to trophonius and trophonissa that trimeni bears to hippocoon and hippocoonoides ; and it, and any of its varieties, which may be described as protohippocoon with the orange flush over most of the chief pale area, may be conveniently named prototrophonius. The evolution of the cenea female form. The history of this form of mimetic female is more difficult to understand than that of trophonius or hippocoon, but figs. 6, 4, and 5 on PI. III., studied and compared in this order, suggest the line of development. The hind-wing pattern is derived from that of trimeni (fig. 6) by a broadening of the black border, the pale yellow pattern at first remaining fluorescent (fig. 4), but losing this property property as it becomes ochreous in the hind-wring and ochreous or white (in the form acene, Sufi) in the fore-wing (fig. 5). The spots near the margin also become smaller in the final product (PL II., figs. 9 and 10). The position of the spots in the fore- wing can be seen fore-shadowed in the trimeni on PL III., fig. 6. The lower border of the chief oval spot becomes defined by a band-like growth of the black ground-colour from base to anal or lower angle of the wing, while the five spots next in size are completed by the ground- 18 colour invading the pale area along the edges of which they are more or less clearly recognisable in fig 6. We thus arrive at such a primitive form of the cenea pattern as is represented on PI. III., fig. 4, and from this pass by a change in the pale pigment to forms like Fig. 5. Forms of cenea which still retain, in any part of the pattern, the fluorescent yellow, may be conveniently called protocenea. At present these have only been proved to exist in the Kikuyu and Nairobi districts. The possibility must not be lost sight of that such an example as trimeni as is shewn in fig. 6 may be a heterozygote, combining- pure trimeni and some form of cenea or protocenea , and that the apparently foreshadowed fore-wing spots may not be truly ancestral. Such a view can only be confirmed or refuted by breeding experiments; but it is difficult to imagine how the patterns of figs. 4 and 5 could have arisen from one like fig. 2 except through a stage similar to that represented in fig. 6. The evolution of the planemoides female form. When I formerly discussed the development of this interesting form (Trans., 1906, pp. 293-7, PL XX., figs. 1-4) transitional varieties between it and cenea and between it and hippocoon, both from the N.E. of the Victoria Nyanza, were described and figured, also unfigured, a form combining the patterns of planemoides and trophonius (actually trophonissa), from Entebbe. It was argued that all these intermediates were probably “ the result of first crosses between females of one form and males bearing the tendencies of the other female forms. We are compelled to believe that in later generations their female offspring would not remain intermediate, but would split up, in accordance with the Mendelian conception, into the parent forms; and we can thus understand the comparative rarity of intermediates.” ( ibid, pp. 295-6.) The last mentioned intermediate, studied in 1906 from a beautiful drawing by Dr. Eltringham, was presented by him to the Hope Department and could thus be compared with two other examples taken by Dr. Carpenter at Kakindu, S. of the Uganda border. Erom one of these he bred, in 1915, the two female forms, planemoides and trophonissa (p. 12), thus confirming the conclusions arrived at nine years earlier. It is in every way probable that the second intermediate, between planemoides and hippocoon, is also a heterozygote which would split up into its constituents in later generations ; but as regards the first intermediate between planemoides and cenea, now known as leighi, further knowledge has proved that the conclusion was mistaken, that the form is stable over a vast area, extending 19 immensely beyond the range of planemoides , so that it is impossible to adopt the plausible interpretation of leighi as a hybrid between cenea and a male bearing the planemoides tendency, or vice versa. We are therefore driven to the hypothesis that the leighi form is a persistent definite stage in the evolution of planemoides (Proc., 1911, p. xli). The leighi form which, as already explained, was first obtained from the N.E. corner of the Victoria Nyanza, and figured in Trans., 1906, PI. XX., fig. 1, was four years later bred and captured in Natal. Eight specimens were obtained, most of them by G. E. Leigh, in 1910, and the form, although always proportionately extremely rare, has continued to appear (Proc., 1911, p. xxxiii.; 1912, p,. cxxxv, 1918, p. vii).* During the past year, 1923, Leigh has both seen it in the wild state and bred it. Nearly all the leighi forms have appeared always mixed with other Natal forms, in the families from eggs laid by trophonins females. There can be little doubt that leighi arose from the cenea form probably with the addition of the pale, subapical, fore-wing bar of hippocoon or trophonius, or more probably retained from the ancestral trimeni. The other parts of the fore- wing pattern are nearly as in cenea, the chief difference being a shortening of the principal mark in area 2, and its growth downwards and outwards into areas la and sometimes also lb. A tendency towards this growth is often to be seen in protocenea and denea (e.g., PI. IIT., figs. 4 and 5; PI. IT., fig. 9) although very faintly in the last figure. The colour of all these fore-wing markings is the rich orange- brown of planemoides, and all that is required to produce the fore- wing of this latter form is the fusion of the oblique bar and all the spots except the sub-marginal into a single broad irregularly outlined bar. The apical spot, common to cenea and, leighi, generally disappears while the other sub-marginal elements persist. A specimen of planemoides taken by a native collecter in August, 1910, between Jilore and Malindi near the coast of Kenya Colony, supports '* The 1912 family containing leighi, and recorded on p. cxxxvi., is there spoken of as the second, but, as this form was bred three times in 1910, it must have been the fourth. A figure of the South African form of leighi given by M. le.Cerf on PI. II.. fig. 12 of his paper in Bull, Hill Mus., Vol. I., No. 3, p. 369. The author is mistaken in thinking that only three examples of the form are known. He agrees that the southern leighi corresponds to a stage in the evolution of 'planemoides in other parts of Africa (see p. ). 20 the above interpretation. In this butterfly, presented to the Oxford University collection by Canon Rogers, the fore-wing bar is divided and thus approaches the pattern of leighi (Proc., 1911, p. xlii.). In the prolongation of orange along the inner margins of this specimen and the large size of the white patch of the hind wing, we probably witness the influence of the male parent carrying the factors of hippocoonoides, by far the commonest form of the female in this district (Trans., 1908, p. 499). The hind wings of cenea, leighi, and planemoides have the same pattern, but the pale ochreous basal patch of the first becomes, sometimes darker, sometimes much paler, in fact nearly white, in the second, while in planemoides a pure white patch in mimicry of the Plariema- models is typical, and a darker one quite exceptional. Following the lines already adopted, the leighi form and its varieties may be spoken of as protoplanemoides . A SIMPLIFIED NOMENCLATURE FOR THE NoN-SySTEMATIC NATURALIST. The origin and meaning of the forms of dardanus must certainly appeal to every naturalist who is interested in the problems of evolution; but the study is hindered at the outset by a complicated nomenclature, complicated indeed may be inferred from the fact that only a small part of its intricacy is here revealed. Thus many of the kaleidoscopic changes undergone by the pattern of the extremely variable female form cenea have received names and even the same form, when it appears in a different race, has been given a different name. I have suggested in the preceding pages a simple and uniform modification of well-known names to indicate the primitive form from which each mimetic female arose ; and, although from the strict systematises point of view this procedure means further complication by the addition of synonymns, it is hoped and believed that the naturalist will be aided in his study of the subject. In a somewhat similar manner, the various female forms in each race may be indicated by adding to each the initial letter of the race name. For this purppse race (4), founded on transitional characters in the male, may be disregarded, and the initial letters of the following employed- — cenea, tibullus, polytrophus, and dardanus . The system of nomenclature, as applied to the principal form names, but capable of extension to others' is as follows: Proceeding from the most primitive to the most specialised patterns : 21 A. Mimics of the Danaine, Amauris mavius : (1) c, t, and p, hippocoon ( hippocoonoides), mimicking A. n. dominicanus; (2) d. hippocoon, mimicking A. n. mavius. Derived from a male- like female thought, and p. protohippo coon ( = dionysoides and tnmeni). B. Mimics of the Danaine, D. chrysippus: (1) c., and t. trophomus; (2) d. trophonius ( = trophonissa ). Derived from protohippocoon through t. and p. prototrophonius ( = lambomi ). C. Mimics of the Danaines, Amauris albimaculata and A. echeria : (1) c., t., p., and d. aciene, mimicking the above Danaines with white spots in fore wing, completely transitional into (2) c., t., p., and d. cenea, mimicking the pale-ochreous-spotted form of echeria. Derived from protohippocoon through (p.) protocenea. D. Mimic of the Acraeines, Planema poggei and P. macarista: t., p., and d. planemoides. Derived from cenea or acene through c., p., and d. protoplanemoides (\—leighi). I have • attempted in the preceding pages to give a condensed account of the chief forms of this most interesting butterfly and to trace the evolution of its mimetic females. In a future paper I hope to discuss the bearing upon this hypothetical history of the splendid series of families bred from known female parents at Nairobi by Dr. van Someren. NOTES ON THE OCCURRENCE OF A SPECIES OF CHALICOTHERE IN UGANDA. By the late C. W. Andrews, D.Sc., F.R.S. (British Museum). In the number of Nature which appeared on November 10th, 1923, I published a short article entitled “ An African Chalicothere,” giving an account of the discovery in the neighbourhood of Albert Nyanza of the characterstiic toe-bone of one of these curious animals. The specimen was sent to the British Museum (Natural History) by Mr. E. J. Way land, Director of the Geological Survey of Uganda and was accompanied by numerous fragmentary remains of Hippopotamus, Phacochoerus, Crocodile, Chelomans and Siluroid fish together with some fresh-water shells. The beds from which these specimens were collected are probably of Pleistocene age. The Chalicotheres (Ancylopoda) are one of the most peculiar groups of Mammals : they actually belong to the Perissodactyla, the uneven- toed Ungulates, of which the horse, rhinoceros, and tapir are m. RESTORATION OF MACROTHERIUM MAGNUM, LARTET. After Abel (Acta Zoologica, 1 (1920), p. 59). About 1/S0th natural size. * modern representatives, but instead of having hoofs they have developed enormous claws, the supporting bones of which are deeply cleft as in some of the Edentata. Indeed Cuvier regarded these claws as belonging to a giant Manis (Pangolin gigantesque), and it was not till 1888 that Filhol described a skeleton of a Chalicothere, called Macrotherium magnum from the French Miocene that it was shown that the teeth and skulls, which had long been supposed to belong to quite different animals, were actually parts of a peculiar clawed ungulate. Abel has recently published an elaborate account of the Chalicotheres and has given a restoration of Macrotherium which is here reproduced. The earliest known representative of the group called Eomoropus is found in the Middle Eocene beds of North America. In the Miocene various genera occur in France, Samos, and Pikermi, while in India and China remains are found probably as late as the Pleistocene.. The extension of the range of the group into Africa, now recorded is particularly interesting. It will be remembered that in Samos Chalic other ium is found associated with Samotherium an animal closely similar to the Okapi, the discovery of which in recent years created such great interest. Since a Chalicothere is now known to have existed in this region there seems to be just a possibility that it also may have survived till the present day and may form the basis of the numerous stories of strang animals that have from time to time been published. Mr. C. W. Hobley in a paper entitled “ On some Unidentified Beasts ” in this journal (vol. III., 1913, p. 48) gives a summary of some of the more notable of these stories of unknown animals. Perhaps the most striking of these occurences are those recorded by Mr. G. Williams in a note “ An Unknown Animal on the Uasin Gishu ” (op. ,cit;, vol. II., 1911, p. 123) and by Mr. G. W. Hickes in “ Notes on the Unknown Beast seen on the Magadi It ail way ” (op. cit., vol.. III., 1913, p. 53). In both cases the animal seen is described as a heavily built, bear or hyaena-like creature; a description which would agree in a general way with the restoration of Macrotherium illustrated. It is to be hoped that every effort will be made to clear up this mystery, for if the animals should turn out to be a Chalicothere, the interest of the discovery would far surpass that of the Okapi. One or two bones of the toes would be quite sufficient to determine whether the beast was a Chalicothere or not, but of course it is desirous to get the whole animal. 28 NATIVE FOLK-LOBE. THE LEPBACAUNS TO KWA NGOMBE. By S. V. Cook. Fifteen miles east of Embu Station there rises from the Emberre Plains the lofty hills of Kwa Ngombe, nearly six thousand feet high. They are inhabited, the Embu natives say, by buffalo and a race of little red men, who are very jealous of their mountain rights. Old Salim, the interpreter at Embu, tells with great dramatic effect how he and some natives once climbed to near the top when suddenly an icy cold wind blew and they were pelted with showers of small stones by some unseen adversaries.. Happening to look up in a pause in their hasty retreat, he assures me that he saw scores of little red men hurling pebbles and waving defiance from the craggy heights. To this day even the most intrepid honey hunters will not venture into the hills. Of course this notion of fairies or little men is found in the folklore of most races. Allingham, the Irish poet, wrote a delightful poem on these people. One verse might have been written about these very Kwa Ngombe people : Up the airy mountain, Down the rushy glen, We dare not go a-hunting For fear of little men. I hope that no intrepid reader of this journal will be tempted to explore Kwa Ngombe after reading this, for were he captured, a punitive expedition against the little men would be a most parlous undertaking! 24