;■ . . . . THE MADREPORARIA OF THE SIBOGA-EXPEDITION PART III EUPSAMMIDAE Sib o ga-Exp editie XVI c THE MADREPORARIA OF THE SIBOGA EXPEDITION PART III EUPSAMMIDAE BY Dr. C. I. VAN DER HORST With 2 plates and 9 textfigures — =g>ê®?-=3=- late E. J. BRILL PUBLISHERS AND PRINTERS LEIDEN 1022 LIST OF RECORDED SPECIES SYSTEMATICAL ACCOUNT . . BIBLIOGRAPHY INDEX EXPLANATION OF PLATES. CONTENTS. ^4838 page 47 4S 71 73 LIST OF RECORDED SPECIES. Fam. Eupsammidae. Dendrophyllia micrauthus (Ehrb.). Dendrophyllia japohica nov. spec. Dendrophyllia minuscula Bourne. Dendrophyllia cribrosa M.-Edw. et H. Dendrophyllia arbuscnla nov. spec. Dendrophyllia axifuga M.-Edw. et H. Dendrophyllia florulenta nov. sp. Dendrophyllia ehrenbergiana (M.-Edw. et H. Dendrophyllia coccinea (Ehrb.). Dendrophyllia zvilleyi (Gard.). Dendrophyllia sibogae nov. spec. Dendrophyllia elegans nov. spec. Dendrophyllia spec. Balanophyllia gigas Brüggemann. Balanophyllia fistula v\lcock. Balanophyllia rediviva Mos. Balanophyllia cornucopia (Pourt.). Balanophyllia nouhuysi nov. spec. Balanophyllia imperialis Sav. Kent. Balanophyllia scabra Alcock. Balanophyllia bairdiana M.-Edw. et H. Balanophyllia parallela (Semper). Balanophyllia affinis (Semper). Balanophyllia tennis nov. spec. Balanophyllia regnlaris (Gard). Balanophyllia cnmingi M.-Edw. et H. Balanophyllia elongata (Mos.). Balanophyllia italica (Michelin). Balanophyllia spec. Rhizopsammia verrilli nov. spec. Rhizopsanimia minuta nov. spec. Hcteropsammia michelini M.-Edw. et H. Heteropsanunia cochlea (Spengler). Heteropsanimia geminata Verrill. Heteropsanunia spec. Endopachys grayi M.-Edw. et H. Endopachys spec. Leptopsannnia stokesiana M.-Edw. et H. Leptopsanunia conica nov. spec. Leptopsannnia crassa nov. spec. Leptopsanunia poculum nov. spec. SIKOGA-EXPE1IITIE XVIr. 99 SYSTEMATICAL ACCOUNT lam. EüPS VMMIDA1 . Th< i general rule in the relation between the septa in tliis family. Of the twelve priginal sepia Lacaze-Duthiers 1897) s'x become the septa of the hrst order and ilrst cycle, six alternating ones becoming the sepia of the second order. The .septa of higher orders are formeel two at a time, always at one side only of the septa of the second order. They ihorter than the latter, with which they are united by their central ends. In this way we septa those of the second. third and fourth order forming a triangle whose is the section of the margin enclosed by the septa of the second and third orders, and whose apex points towards the columella, but does not reach it. rhe septum of the fourth order forms an axis of symmetry between the two others, being in line with the central portion of the septum of the second order, whose peripheral portion bends ontward to form one of the sides of the triangle. It may he clear from this that my septum of the fourth order is the same as the septum of the second order or cycle of authors. The formation oi septa ol higher orders goes on in the same way, always two septa at the sanv time, which unite with the older septum to form triangles in which the septum of the highest order is the a.\is of symmetry. Newly formed sepia unite always with the lateral ita, never with the axis of symmetry of the triangle. The formation of new septa goes on taster at the side of the older of the two lateral i. thus establishing it as a se], umi of lower order. So we get again an asymmetry. This asymmetry maj be temporary or permanent. But it is difficult if not impossible to say which it is in a given It may 1- ar trom this that there is no real difference between the genus Balano- phyllia and the genus Rhodopsammia: the difference being based on an assumed difference the septa. s., the genus Rhodopsamtnia must be absorbed in Balanophyllia. I found the same relation between the septa of different orders in all the genera of the immidae that I < ould e :amine, except two, viz. Stephanopliyllia and Leptopsammia. According e-Edwards and II umi, the genus Endopsammia wholly agrees with Leptopsammia in to thi 1; maj be il is better to unite these two genera in a single one. P01 ri \i 1 - • this genus Trochopsammia has noi cent septa; 1 could not examine that 100 49 genus, which may also be an exception. The difference in the genus Stcphanophyllia is only a slight one; the axes of symmetry are wanting here, except the first one, i. e. the septum of the fourth order. But in Leplopsammia new septa are formed, or can be formed, on both sides of an older septum and this is a well-marked difference from all the other genera of the family. Lacaze-Duthiers has pointed out that difference very clearly in hïs hgures 3 and 12 on Plate XI (Lac.-Duth. 1897). For systematical purposes I will make a difference between the terms order and cycle, the former indicating the genetic sequence of the septa as I have pointed out previously. The septa of different orders are never complete xioaa 1 6 \ \ ijl 8 J t> J 38)03 tit'i f 3 5 t 5 1 S <■ 5 i S U5fcl Fig. 1. ortlers. Fig. 2. cycles. in the Eupsaiiimidae whenever it is possible that there are more septa of the same order. The term cycle — in systematical descriptions of more importance — I will use in the sense employed by most authors. The cycles may be complete or incomplete. The difference between the orders and cycles and their respective sequence are illustrated in the figures 1 and 2. The definition of the genus Thecopsammia is according to Pourtalès (187 i) "corallum simple, attached, without costae, covered with a complete epitheca". In the genus Balanophyllia there are species without any tracé of an epitheca, other species with a thin epitheca, leaving the ribs still visible, and others again (e. g. Bal. gigas) with a dense epitheca covering about three quarters of the corallum, through which no ribs are visible. So I am wholly in accordance with Duncan (1873) who says: The epitheca, which is strongly developed in some species of the genus (Baiauopl/ villa), affords but secondary characters for differentiation ; consequent! v the genus must include Thecopsammia of Pourtalès. Dendrophyllia de Blainville. This genus is nearly allied to the genus Balanophyllia ; it is practically impossible to distinguish young Dendrophv Ilias with only one calicle from true Balanophvllias. In the older Dendrophyllia the corallum is alvvays compouncl ; the young corallites, formed by budcling, remain connected with the parental stem. In Balanophyllia budding can take place too, but the newly formed corallites tend to separate from the parental corallite and often do so, though they can remain connected for a long time, may be during their whole life. The identification of the incrusting species is very difhcult. Many species are described but not always satisfactorily. I have before me five different incrusting species - - at least I think they are different. But I could identify only three as formerly described species and even that with some hesitation. 1. Dendrophyllia micranthus (Ehrb.). Oculina micranthus Ehrenberg 1834. Dendrophyllia nigrescens Dana 1846. Ëdward i ililne-Edwards 181 ulilni I dwards i ililm I dwards i Verrill 1864. mper 1872. . . Klunzinger 1879. xequiserialis Quelch 1886. . < >i im.imi 1 SSS. . .//;/. micranthus. to the general statements of Wood foNi about the growth of corals D. that form of the species which grows in streaming water, the flat side of the ndicular to the direction of the curn m . 5i There is also no real difference in the length of the calicles, though Klunzing er says there is. Further the ribs on the surface do not give any support. In the typical D. nigre I found them as well developed as in the typical D, micranthus. Also in Ortmann's specimen of D. nigrescens is "das Cönenchym stellenweise doch etwas gestreift". So I think there is no real difference between the species of Dana and that of Ehrenberg. From Stat. 277 I have numerous young specimens, some consisting of only a few calicles, but showing the typical method of branching. *2. Dcndrophyllia japonica nov. spec. (Plate VII, fig. 6). Japan. 1 ex. Corallum arborescent, with thick branches in all directions. Height of the colony 9 cm ; the mainstem, just above the enlarged base, 2 cm. thick. The branches are short, ± 5 cm.. The corallites on the branches are arranged in two rows. On some branches they are very crowded and long, giving the branch a fan-shape; this is seen in some branches of D. micran- thus too. The alternate bending of the corallites forward and backward is to be seen only on one side of a few branches and even than not very clearly; so it seems that the corallites are more irregularly arranged. On the mainstem secondary calicles have developed on the front- and backside. The corallites usually protrude a little (3 a 4 mm.); some are ± 1 cm. long. The ribs on the stem are formed by rows of granulations, with nearly no pores between them. Towards the end of the branches the number of perforations increases and the ribs are more prominent. On the corallites the ribs are low, sometimes with one row of granulations, but generally the granulations are irregularly distributed. The intercostal furrows are here shallow and much perforated. The calicles are rather wide especially those on the stem and somewhat elliptical in shape (9 X l 1 mm.). On the branches they are a little smaller (7X8 mm.). The depth of the calicles is 4 to 5 mm.. The septa all project above the edge of the calicle, those' of the first and second cycle being somewhat thicker than the others. There are four cycles of septa, a fifth cycle may be developed in some systems, and there are even indications of a sixth cycle. The septa of the two first cycles are larger than the others. The septa of the third cycle, being short, do not reach the columella. The septa next to those of the first order are long and reach the columella. The arrangement of the septa is shown in the accompanying diagram (fig. 3). The edge of the septa of the first and second cycle is entire or with very small teeth, the sides are covered with a few irregularly scattered granulations. The septa of the higher cycles are jaggedly dentate on the edge. There is a well developed columella, :z 5 mm. long, and ± 1 mm. broad, consisting of a spongy network. 3. Dcndrophyllia minuscula Bourne. (Plate VIII, fig. 30). Deridrophyllia minuscula Bourne 1905. Stat. 49a. Sapeh-strait. Depth 69 meter. 2 ex. Stat. 51. Molo-strait. Depth 69 — 91 meter. 2 ex. 103 1 pj Thi cription of the specimens of the Sibo ection: ndroid. Gemmation t . i k i 1 1 l; place near the calicular margin, sometimes two or tl being formed ai the same time, sometimes onl) one. The rMr.illit.-s are I in rows along the stem and branches, but are irregularly distributed facing in all often two coralliti - are formed at the same height, one opposite the other. The : of tin- bigg ) Stal o cm.. I lx- corallites are five mm. long at most, m. iv or may nol in rease in diameter from the base toward the calicular margin, the a :is "f the elliptical calicle being 3.5 to 5 mm., and the short axis 3 to 1 mm.. The te, visible over the whole length of the stem. are low, flattened above, equal, not perforate, covered with fine irregularly scattered granulations. I1ucrr0si.il furrows very narrow, with smal! perforations. rhe septa are arranged in three cycles, those of the fourth cycle being developed in a systems, as is shown in the diagram (fig. 4). In the top-calicles there are always four complete cycles. The sepia of the first cycle project very little above the calicular margin; they slope down in the calicle and bend rather suddenly or slowly in a vertical direction. The septa of the higher cycles do not pr< a- far in the calicular fossa as those of the first cycle. All the septa are thin, have an entire edge or smal! teeth and only a few granulations on the sides The depth of the calicle is from one to two mm., in the axial calicles it may be more The columella is one mm. long at most, composed of a few, thin, twisted, band-like trabeculae, projecting from the bottom of the calicle. This species seems to be nearly allied to the Dendrophyllia gracilis M.-Edwards and Haime. The smal! specimen described by Bourne seems to have been a young one. The diameter oi the calicle is two mm. according to Bourne, otherwise mv specimens agree in all resj with his description and figure. Dendrophyllia cribrosa M.-Edw. et II Plate VII, fig. 2). Dentipora anastomosans de Haan secundum de Blainville [834. ntipora cribrosa de Haan secundum de Blainville 1834. phyllia cribrosa Milne-Edwards et Haime 1851. phyllia cribrosa Milne-Edwards iSOo. Ban iDlNGH li I den Mus. 1 ex. and 3 pieces. - Japan. NoORDHOEK HECHT leg. 1 ex. Locality unknown, from Paris Mus., Leiden Mus. 2 ex. I >i Blainville mentions both his species, adding that they are- the Oculina anastomosans laan and Oculina de liaan from the collection of the Leiden Museum. There not exist a description by de Haan. Milne-Edwards and II umi give a*good description right in uniting both species. The real D. cribrosa^ according to the old lab ises also, though not to the same extent. The biggesl specimen from Japan) is 20 cm. ■ iic given l>y Ri w of his Coenopsammia ramiculosa resembles some- • the figure is had and the description inadaequate. 104 53 5. Dendrophyllia aróuscula nov. spec. (Plate VIII, fig. 6). Stat. 260. 2.3 miles N. 630 W. from the North-point of Nuhu Jaan, Kei-islands. Depth 90 meter. 2 ex. Stat. 277. Kulewatti-(Sollot-)bay, Dammer-island. Depth 45 meter. 1 ex. Colony dendroid with the branches in all directions. The abundantly branched specimen from Stat. 277 is 8 cm. high. The specimens from Stat. 260 are branched only once or twice and are 7 and 6 cm. high; the latter is broken off. So the species seems not to be a very large one. Usually there are two branches opposite one another, but often there is only one branch. Budding takes place near the calicular margin. The living soft tissue extends to about 1 cm. from the calicular margin; the surface of the branches is dead, being covered by Bryozoans, Serpulids, etc. The mainstem of the specimen from Stat. 277 is 1 cm. thick, getting thinner beyond the first branches; in the two specimens from Stat. 260 the mainstem has the same thickness as the corallites, and only the base is enlarged. The corallites are thinner near the base than near the calicular margin, e.g. respectively 4 and 6 mm. in diameter. The length of simple corallites without buds is nearly 12 mm., often it is less, sometimes more; the longest simple corallite is 22 mm. long. The ribs are rectilinear to the base of the colony, slightly prominent and thickly covered with very fine granulations. In the intercostal furrows rows of perforations are present as far as the living tissue extends ; beyond that area there are no perforations. There is no epitheca. Septa in four cycles. Those of the first cycle are larger than the others and slightly exsert above the margin of the calicle. Their edge is entire and they are covered with granulations arranged in rows parallel to the upper edge of the septum, thus förming an angle with that part of the edge that descends perpendicularly in the calicular fossa. All the septa are thin and spongy except near the margin of the calicle. The septa of the second cycle have also the margin entire, but they do not project as far as those of the first cycle in the fossa. The septa of the third cycle are very small ; those of the fourth cycle have a dentate edge and unite in front of the septa of the third cycle. The outer septum of the fourth cycle is always larger than the inner one. The columella is well developed, trabecular and prominent. The depth of the calicle is 4 mm. at most. 6. Dendrophyllia axifuga M.-Edw. et H. (Plate VII, hg. 1). Dendrophyllia axifuga Milne-Edvvards et Haime 1848 Dendrophyllia axifuga Milne-Edwards 1S60. Dendrophyllia axifuga Quelch 1886. Stat. 299. Buka- or Cyrus-bay, South-coast of Rotti-island. Depth 34 meter. 3 ex. Stat. 301. Pepela-bay, East-coast of Rotti-island. Depth 22 meter. 4 pieces apparently belonging together. The method of branching is very typical for this species. The simple corallites are cylindrical, sometimes 3 cm. long, usually shorter. The budding takes place at the edge of the calicle, one or two buds are formeel at a time and always at the outer side of the calicle, i. e., that 'side that i from the corallite of the nexl older generation. All calicles are nearly on tl that the colony is nol very high (8 cm bul broad (17 cm. Ribs : ie outer surface of the corallum is covered by fine, often interrupted lamella< ■ the long axis, with fine spines on the edge rhey are much smaller than t)„. ■ them .in. 1 more numerous than the septa. The wal! is very much perfor- mething of an epithica in the basal portions of the colony, consisting of fine The arrangement of the septa is shown in the accompanying am (fig 5 Hie septa are not exsert. Those of the first and second cycle are similar, and rather small, su that the calicular fossa is wide. At the edge ol the calicle the septa may be very small, becoming gradually broader towards the columella, or they may slope down with a faint bend and than descend perpendicularly downwards. The edge is entire, there are a few granulations on the sides. The septa of higher cycles have teeth on the edge ■ deeper down in the calicle tb teeth become smaller and disappear altogether. The septa of the firsl and second cycle are thickened near the columella. The calicle is round and has a diameter of ± 10 mm.: the depth mm. I he columella is well developed, plane or sometimes concave, lamellate and measures 3.5 mm. 7. Dendrophyllia florulenta nov. spec. (Plate VII, tig. 5). Stat. 51. Molo-strait. Depth 69 — 91 meter, i ex. Stat. $05. Mid-channel in Solor-strait off Kampong Menanga. Depth 113 meter. 1 ex. Both specimens consist of a single branch. The method of branching is very characteristic The corallites are all situated in the same plane. Budding takes place near the calicular margin, every corallite forming only one new corallite, and at the colony as a whole the alternatin^ buds are formed to the right and lelt. In that way the- colony seems to consist of a zigzag stem with the calicles at the corners. Every separate corallite is about 1 cm. long and the distance hetween the calicular margin of the mother-corallite and the base of the daughter- corallite is 2 mm.. The ril.s are low, covered with few, fine, irregularly scattered granulations. The inter- costal furrows are perforated and shallow, so that the iil>s are not very apparent. The calicle is 6.5 4.5 mm. wide. The septa are prominently exsert, those of the first cycle more protrudin- than those ■>! the second cycle. The arrangement is shown in the diagram (fig. imon base. This I I irmed, as in D. ehrenbergiana^ by the coal( under parts of the corallites; a ti enenchym does not exist. rhe corallites have the same diameter throughout their length; the;, are slightlj elliptical, measuring e. g. 14 1 ;, mm., rhe er than the furrows between them; they are not connected by horizontal trabe culae, flat and with numcrous granulations irregularly distributed over their whole surfaa |y in the furrows between the ribs. principal septa are sometimes a little exsert; they slope down from the margin idth rather rapidly and than fall perpendicularly to the outer edge of the •..11a ; 1 e is entire, the sides an covered with very few granulations. Septa of the a little smaller, those of higher cycles much smaller and with toothed edge. well developed, slightly prominent or flat, spongy. I fepth of the calicle a little more than half ïts length. Judging from his description and figure the Lobopsammia robusta of Bourne is synonymous with this species. Thai fissiparity does not occur is very apparent; Bourne thought it did. Dendrophyllia vuilleyi Gard.). (Plate VIII, fig. 17 and 18). enopsammia Gardiner 1900. Dendrophyllia willeyi Vaughan 1 > » 1 s . Japan. 1 ex. 1 am not quite sure about the identity of this specimen; it differs from the typical /> willeyi by the by far lar^er calicles; the biggest calicle in my specimen has a diameter of 14 mm.. The ribs of my specimen are covered with one row of spines on the edge; these spines are clearly visible with the naked eye, there are about 25 in 1 cm.. In the typical specimen that prof. Gardiner kindly sent me there are no spines on the ribs. The arrangement of the septa deviates markedly from the common type as is shown in the accompanying diagram (fig. 8). This is the case in my specimen a-> well as in the typical one. The septa <>t the higher cycles are sometimes interrupted. 1 In different cycles are not always recognizable. but the formation of new septa ms to go according t<> the general law of v. Kot 11. I li in this species are much shorter than in the preceding two species; the est one in my specimen is only 12 mm. high. 11. Dendrophyllia sibogae nov. spec. (Plate VIII, fig. 19 and 20). St.it. 282. Anchorage between Nusa Besi and the \. E.-point ofTimor. Depth 2- — 54 meter. 1 ex. Stat. 503. Haingsisi, Samau-island. Depth up to 36 meter. 2 ex. irallum forming clusters of crowded cups, of a rather re^ular arrangement. The initial sily recognizable. The height of the colony is 4 cm. The simple corallites are short. Budding takes place near the calicular margin. 108 1! 5 7 The ribs are apparent, narrower than the furrows between them, usually with one row of very fine spines on the edge, sometimes with granulations on the sides. There are large pores in the intercostal furrows. The four cycles of septa are arranged in the typical way, sometimes a rudiment of a fifth cycle is present. The septa are not exsert above the calicular margin. As the septa project only very little into the calicular fossa, this is very wide. In this respect it resembles Verrill's Coenopsammia manni. Vaughan (1907) gives a figure of a cotype of Verrill's species, which shows very clearly the narrow septa and wide calicle, but not so the figure of the specimen of Vaughan's collection. The septa increase downward very slowly in breadth and join the columella. The septa of the first cycle have fine teeth on the edge and are much granulated on the sides. The septa of the second cycle do not project as far as those of the first cycle but have the same aspect. The septa of the higher cycles are much smaller and with long teeth on the edge, sometimes they are represented only by a row of teeth on the inner side of the wall. The columella is well developed, broad, consisting of twisted lamellae; in the bigger calicles its length is about half that of the calicle, in smaller ones it is shorter, e.g., in a calicle of 10X8 mm. it measures 5X3-5 mm.. The depth of the calicles equals their length. 12. Dendrophyllia elegans nov. spec. (Plate VIII, fig. 9 and 10). Stat. 2S2. Anchorage between Nusa Besi and the N. E.-point of Timor. Reef. 1 ex. A cluster of corallites are situated on the top of a broken off stalk that is about 1 cm. long and forms a part of the colony. One of the corallites is bigger than the others; it is the initial corallite. four daughter-corallites are a little smaller, three other ones much smaller. The corallites are connected only at their base, that being the place where new buds are formed, judging from the place of the three little corallites. The initial corallite and the biggest newly formed ones are 20 mm. long, the three little ones are only a few mm. long. The calicle of the initial corallite is 14 X n nim. wide near the margin. The corallites increase in diameter from the base upwards. As the initial corallite is surrounded by the newly formed ones, it is impossible to get the exact measures of its base. One of the secondary corallites has a diameter of 7 X 6 mm. at the base and of 9 X 7 nim. at the top. The principal costae, corresponding with the septa of the first cycle, are clearly recogni- zable in the initial corallite, to a smaller extent also in the bigger daughter-corallites. These principal ribs are broader and project more than the other ribs; they consist of irregularly disposed, a little elongated granulae, between which are perforations. The other ribs consist of a single row of granulations, they are very narrow. The rows of granulations get more and more irregular towards the calicular margin, and the wall of the calicle is there very much perforated, thin and very fragile. The septa are typically arranged in four cycles, a fifth one can be developed in some systems. The septa of the first cycle are prominently exsert. They project for 2 mm. in the calicular fossa. Their upper edge is nearly horizontal, then they fall steeply downwards. The 109 other septa are ver) narrow at the margin ol the calicle rhey slope downwards getting broader lhc edge of til*- septa <>t the first cycle is entire, the sides are covered bj .1 few granulations and show horizontal striae The other septa have small teeth on the edge. The columella is wanting altogether. In this respect it should be a Stereopsammia. . eang-island. Depth 100 meter. 1 ex, •. Anchi etween Nusa Besi and the N. E.-point of I Reef. 1 ex. i These three specimens, belonging to three different species, have the calicles much i. making the identification impossible. Balanophyllia Searles Wood. As I have pointed out before 1 include in this genus the genera Rhodopsammia of - ik and Thecopsammia of Pourtalès. 1. Balanophyllia gigas Brüggemann. (Plate YIII, fig. 22 . Balanophyllia gigas Brüggemann M.S. (secundum Moseley 18S1). Balanophyllia gigas Moseley 1 8 S 1 . Stat. 260. J.3 miles N., Gy W. from the North-point of Nuhu Jaan, Kei-islands. Depth 90 nieter. 2 ex. Japan. 3 ex. — Locality unknown. Leiden Mus. 4 ex. Moseley makes some remarks about this unpublished species of Brüggemann, comparing it with B. cornu and B. socialis. I am quite sure that 1 have before me representatives of the same specii The following is a description of nn specimens: The conical corallum is very slender near the attached base, increasing in diameter rapidly topwards. I h< ■ figured specimen has a diameter near the base of 9 mm., whereas the elliptical calicular opening measures v> 24 mm.. The other specimens are even more slender. The corallum is bent in some direction, it may be parallel to the long axis or parallel to the short axis <>t the calicle. or intermediate between them. The wal! is covered by a dense epithi from the base to about 1 cm. from the margin; sometimes the ribs are wholly concealed by this epitheca, though they are lor the must part still visible. In the upper part the ribs are apparent; they are broader or narrower independently of the arrangement of the corresponding septa. The ribs are flat, roughly granulated, perforate or not, separated Ia narrow, much perforated furrows. The septa are typically arranged in five cycles. The septa of the first and second cycle imilar. prominentl) up to 4 mm. above the calicular margin. They may be spongy • margin of the calicle or nol so. Thej slope graduall) down in the fossa, acquirin; p i" one cm ; then they fall perpendicularly downwards to join the outer margin ol 1 10 59 columella. Their edge is entire, the sides are covered with granules which are often arranged the in rows perpendicular to the edge and in rows parallel to the edge. Striae parallel to the edge are often visible. The outer septa of the fifth cycle are broader than those of the fourth and third cycle and nearly as broad as those of the first two cycles. The edge of the septa of the higher cycles is entire or toothed, and the sides are densely covered with granulations. The columella is trabecular, projecting, its length about half that of the calicle. In one calicle the septa meet in the centrum leaving no room for the columella. The depth of the calicle is about i cm.. 2. Balanophyllia fistiila Alcock. Balanophyllia (Thecopsammia) fistala Alcock 1902. Thecopsammia fistula v. Marenzeller 1907b. Stat. Si. Puin Sebangkatan, Borneo-bank. Depth 34 meter. 1 ex. Stat. 260. 2.3 miles N., 630 W. from the North point of Nuhu Jaan, Kei-islands. Depth 90 meter. 3 ex. Stat. 310. S°3o'S., ii9°7'.sE. Sapeh-strait. Depth y^ meter. 1 ex. Von Marenzeller correctly identified this species, of which Alcock gave a rather short description. The accurate description of v. Marenzeller wholly agrees with the type-specimen. 3. Balanophyllia rediviva Mos. Balanophyllia rediviva Moseley 1881. Balanophyllia rediviva v. Marenzeller 1907 b. Stat. 260. 2.3 miles N., 630 W. from the North-point of Nuhu Jaan, Kei-islands. Depth 90 meter. 2 ex. These specimens wholly agree with the description and figures of Moseley and Marenzeller. 4. Balanophyllia cornucopia (Pourt.). (Plate VIII, fig. 13). ■Dendrophyllia cornucopia Pourtalès 1871. Dendrophyllia cornucopia Pourtalès 1S80. Stat. 204. Between islands of Wowoni and Buton; Northern entrance of Buton-strait. Depth from 75 to 94 meter. 1 ex. This species was described by Pourtalès from Key-West. My specimen agrees in all respects with bis description. This species is not a Dendrophyllia but a Balanophyllia with buds. My specimen has only one bucl. v5. Balanophyllia nouhiiysi nov. spec. (Plate VIII, fig. 16). East-coast of Sumatra., East from Segli. Depth about 100 meter. Van NOUHUYS leg. 1 ex. Corallum cylindrical, attached with a spreading base. As is shown in the figure the corallum is Y-shaped, with two corallites. In this respect it should be a Dendrophyllia. Bat as the corallites do not show the slightest tendency to fork or bud again, I think it is an accident. The height of the corallum is | cm., both corallites have the same height. The cormnon stem has a diametei mm . the separate corallites ol 7 mm \ thin, porous epitheca extends from the base to about 1.5 cm. from the upper margin. The ribs are narrow, but apparent from the top to the base. In the basal part of the corallum : »vered bj one or more rows of fine pointed granules. In the upper part above the epitheca the ril>s. are cd by larger and verj irregular granules, and the wal! is much perforati principal costae corresponding with the septa ol the firsl (\<1<- are prominent. The ire arranged in four complete cycles. The septa of the lirst order are much 2 mm. above the margin <>!" the caliele, those of the second cycle project nm.; the projecting part of the septa is spongy, otherwise they are thin. The septa slope down, till they projeel about one third ol the diameter of the caliele. then fall perpendicularly irds the bottom. The septa of the second cycle are narrower than those of the lirst one The edge is entire; nearly no granules on the faces. Septa of the fourth cycle broader than ■ of the third, joining in front of the latter near the columella. The edge of these septa is provided with small teeth. Columella well developed, very prominent, trabecular, 3 mm. long. The diameter of the elliptical calicles is 8 < 7 and 7 < 6 mm. and their depth about 4 mm. 6. Balanophyllia imperialis Sav. Kent. Plate VI II, fig. 2} — 29). Balanophyllia imperialis Saville Kent 187 1. Balanophyllia malaccensis Saville Kent 1S71. Balanophyllia gentmifera Klunzinger 1879. Balanophyllia malaccensis Moseley [881. Eupsammia regalis Alcock 1S93. Balanophyllia cornu Alcock 1902. Balanophyllia gentmifera v. Marenzeller 1907 c. Stat. [53. o°3'. SN., i30°24'.5 1*;. Near Jen-islands. Depth 141 nieter. 14 ex. 1. 2.3 miles X., 63°W. from the North-point of Nuhu-Jaan, Kei-islands. Depth 90 meter. 4 ex. Stat. 289. 9°o'.3 S., 1 2' > ' 24 .5 E. Near South-coast of Timor. Depth 112 meter. About 20 ex. I have good reasons lor the above given synonymy of this species. The Balanophyllia mentioned by Alcock in [902 from Stat. 297 of the Siboga Expedition is not a true Balanophyllia cornu. According to Moseley's description the septa are in B. cornu very slightly exsert, the wall very finely perforated and the costae composed of line but sharp granules. In all these characters this specimen of tin- Sibo ;a I :pedition does not agree with the description, but it at^rees in all respects with my spe< imens as is shown in tin? figure. The only differences in the descriptions of Balanophyllia imperialis Sav. kent and Eupsammia regalis Alcock are that the first mentioned is attached by a slender l>asr and has ribs conspicuous from the base to the margin, and tin- latter is free from traces ol former :i and the 1 re distinci in the uppi r two thirds of the corallum. Now my specimens 1 to small shells, and pieces of coral, often also on the corallum of the sami . The original support is often very small. and 1>\ continued growth it is wholly i basal portion of the corallum. which is then apparently free see fig. 28and 20 on 6i Plate VIII). Often also the slender base is broken off and regenerated. When the corallum is free the ribs are often worn oft' in the basal portion of the corallum; that is clearly shown by a few Iarger specimens, but when the corallum is attached or young the ribs are conspicuous from the base to the margin. So I do not think that there is any difference between these two species. Balanophyllia malaccensis Sav. Kent seems to be a young specimen of the same species. Some of the younger specimens that I could examine quite agree with the description of Saville Kent and the description and ftgure of Balanophyllia floridana Pourtalès, which species is very similar to B. malaccensis according to Saville Kent diftering only in the form of the columella and the granulations on the septa. The Balanophyllia gemmifera Klunzinger has a well-developed epitheca, whereas in my specimens the epitheca is usually absent. But I have also specimens with an epitheca, though it is never complete, consisting only of scattered patches. I do not think, that this difference allows a specific separation. As is shown in the fïgures the general aspect of the corallum varies a good deal. It is always conical, with a narrow base and a wide top. But it may be very slender and long or blunt and short, it may be curved, sometimes twice or more in different directions, or erect. It may be attached or free; simple or with buds, sometimes of three or four generations. The formation of buds is shown by all the specimens from Stat. 289. As many buds had broken off from the parental calicle, the exact number of specimens was not to be determined. The buds are fixed on the wall, sometimes near the base, sometimes near the top, often on the calicular margin, or even on the septa. But I am not quite sure whether they are really buds at all and not oözoites. I found specimens attached to shells, on dead pieces of coral, to the wall and to the calicular margin of a Flabellum exactly in the same way as to the so-called parental calicle. The bottom of Station 289 consists of mud, sand and shells. It is quite possible that the older corallites are a welcome point of support for the attaching oözoites. The length ol the corallite is up to 5 cm.. The calicle is elliptical in shape, measuring e. g. 14 X 12 mm. or 16 )< 12 mm.. The ribs are roughly granulated; the principal costae can project a little more than the others. Septa in the older calicles in five incomplete cycles, in younger there are four cycles. Septa of the first and second cycle equal, markedly exsert, spongy at the upper margin, having the edge entire, and granules on the sides. The septa of the higher cycles roughly dentate. Columella well developed, prominent, spongy, it length nearly half that of the calicle. The depth of the calicle is half its length. 7. Balanophyllia scabra Alcock. Balanopltyllia scabra Alcock 1893. Stat. 47. Bay of Bima. Depth 55 meter. 1 ex. Stat. 49a. Sapeh-strait. Depth 69 meter. 1 ex. Though the calicle is not very deep, I think the specimen from Stat. 49a is a representative of ihis species. I li>- specimen from Stat. 17 is .1 young one, and I am nol sure about its identitj 8. . ■•:■: M Edw. et il Plate VIII, lig. 5 and Milnc-Edwards et I laime 1 1 Milnc-Edwards is 1 M< li j [881 . Kwandang-bay-entrance. Depth r. ó ex. 130 i; .5 I • Arafura-sea. Depth 32 meter. 3 ex. 30 S., ng ;.; E. Sapeh-strait. Depth 73 meter. 2 ex. fullgrown specimens from Stat. 310 agree in all respe.cts with the descriptions ol Milnk-Edwards and Haime, and Moseley, though the narrow basal part is longer than in Moseli 1 - figure. 1 'he specimens from Stat. 117 and Stat. 164 are young unes, attached t<> th<- same support in each case. Only the older ones, about 1 cm. high, can be identifie belonging to this species. 9. Balanophyllia parallela Semper . Rhodopsammia parallela Semper 1S72. Rhodopsammia carinata Semper [872. Rhodopsammia a moe na Semper 1872. Rhodopsammia parallela Quelch 18J Rhodopsammia carinata Alcock 1893. Balanophyllia parallela Bourne 1905. it. 240. Banda. Depth from 9 — 45 meter. 6 ex. According to Marenzeller (1907a) these species of Semper are identical. Mv specimens agree mostly with Semper's description ot Rhodopsammia carinata. Buds are not formed. Balanophyllia affinis (Semper). Rhodopsammia socialis Semper 1872. Rhodopsammia affinis Semper [872. Rhodopsammia ovalis Semper 1872. Rhodopsammia incerta Semper 1 Rhodopsammia dubia Semper 1872. Rhodopsammia socialis Alcock i inophyllia socialis Bourne 1905. Stat. 2' .4. Betwcen islands of Wowoni and Buton, Northern entrance of Buton-strait. Depth •il 75 94 meter. I ex. Marenzeller 1907a who could examine the type specimens of Sempei joined together ol S ii'i.K in a single species: Rhodopsammia socialis. Bul .is I include thé genera ammia and Thecopsammia in the genus Balanophyllia, the name Balanophyllia socialis ied by the Thecopsammia socialis of Pouri vlès. I wil] preserve the name Balanophyllia pi cimen is attached to th<- centre of the calicle of .1 specimen of the same spe» 1 1.) 63 ii. Balanophyllia tenuis nov. spec. (Plate VII, fig. 8). Stat. 96. South-east side of Pearl-bank, Sulu-archipelago. Depth 15 meter. 1 ex. Corallite conical; the base is broken off. There are a few winglike expansions covering other objects connected with the theca. On one of these expansions a young bud is attached ; an older bud is connected with the main corallite by an other expansion ; the broken off base of this bud projects at the underside in the same way as that of the main corallite. The wall is perforated only near the calicular margin. There are neither epitheca nor ribs. The wall is somewhat angular, and the projections correspond with the septa of the first and second cycle. It is covered by irregularly scattered, fine, pointed, sometimes needledike granulae. The heio-ht of the corallite is 2 cm., the diameter of the broken off base is 4 mm. and that of the elliptical calicle 9 X 7-5 mm.. The calicles of the buds are round. The septa are arranged in four cycles. Those of the first cycle are much exsert, those of the second cycle to a less extent. They have the same shape, though those of the first cycle are broader. The septa are spongy near the calicular margin. The septal faces are covered by a few granules. The septa of the foürth cycle are much broader than those of the third one. They join together about halfway between the margin and the columella. All septa have the edge entire, but those of the higher cycles are more granular on the sides than those of the first and second cycles. The columella is rather well developed, its length being one-third of that of the calicle. It is trabecular and not prominent. The depth of the calicle is about half its length. 12. Balanophyllia regularis (Gard.). Thecopsammia regularis Gardiner 1898. Stat. 213. Zuid-Eiland near Saleyer. 30 ex. These specimens correspond in all respects with the description and figure given by Gardiner, save that some specimens increase in diameter from the base upwards. 13. Balanophyllia cumingi M.-Edw. et H. Balanophyllia cumingi Milne-Edwards et Haime 1848. Balanophyllia cumingi Milne-Edwards 1860. Balanopliyllia cumingi Bourne 1905. Balanophyllia cumingi Bedot 1907. Stat. 257. Du-roa-strait, Kei-islands. Depth till 52 meter. 1 ex. This is a young specimen of 9 mm. height. No septa of the fifth cycle have developed. According to Verrill (1864) the Dendrophyllia scabrosa Dana is synonymous with this species. It may be right but the description given by Dana is rather insufficiënt. 14. Balanophyllia elongata (Mos.). Thecopsammia elongata Moseley 1 SS 1. Stat. 289. 9°o'.3S., I26°24'.5E. South-coast of Timor. Depth 112 meter. 1 ex. "5 SIBOGA-EXPEDITIE XVI c. Q "I rhis is a bad specimen, the calicle being mutilated. 1 am not sure about ,ts identity, in most respects with 1 1 1 « - description « > I this species. i;. Balanophyllia italica Michelin). Mi. helin i xlanophylh ■■ Milne-Edwards [8i ■Duthiers i /.',/.' i Marenzeller 1907. Stat. ;.. Sapeh-strait. Depth 69 meter. 1 ex. This specimen belongs pretty certainly to this species, though the calicle is nol as deep as ii ought to be. Hut the calicle has been broken off and is in proces of regeneration. This Mediterranean species is described l>y Marenzeller from the Red Sea. Balanophyllia spec. Stat. 59. Western entrance Samau-strait. Depth 390 meter. 1 ex. - 43*.5 V. 119 40' E. Sulu-archipelago. Depth 522 meter. 3 ex. t, 107. Channel between the islands of Sulu and Bangalao. Depth 5S0 meter. 1 ex. Stat. 172. (ii^scr. Depth iS meter, i ex. Stat. 310. 8° 30 S., 119 7 '.5 E. Sapeh-strait. Depth 73 meter. 1 ex. As these specimens are too much damaged or too young, identification was nol possible. Rhizopsammia Verrill. The genus Rhizopsammia established by Verrill i 1867) is nearly allied to Balanophyllia; the only difference is the method of budding by stolon-like expansions in Rhizopsammia. As the paliform lobes are absent in the species here described their presence is not a generic character. The same is true for the absence of the epitheca, which is well developed in my . Rhizopsammia minuta. 1. Rhizopsammia verrilli nov. spec. (Plate VIII, fig. 1 and 2). Stat. 220. Anchorage otï Pasir Pandjang, West-coast of Binongka. Depth 27S meter. 2 ex. Stat. 282. Anchorage between Nusa Besi and the N.E.-point of Timor. Depth from 27 till 54 meter. 2 ex. The colonies are attached to stones, one of which is covered on the other side by an Acropora. The largest colony measures 7 8 cm.. The distance between the corallites is il. Ie, it may be a few millimeters or a few centimeters. The stolon-like expansions are mm. broad. The ribs are continued 11 mm. The walls are n porous, the pon 1 in the furrows as well as on the ribs. The ribs are covered larly scattered granules. 116 Septa arranged in five incomplete cycles. Those of the first cycle slightly projecting above the calicular margin ; they are rounded at the top which is spongy ; the inner edge falls perpendicularly towards the columella. The edge is entire or with minute teeth, the sides are covered with oranules. The septa of the second cycle are a little smaller than those of the first one, but have the same aspect. The septa of the higher cycles are dentate on the edge. Those of the fourth cycle join in pairs in front of those of the third cycle. The septa of the fifth cycle are very small. No paliform lobes. Columella well developed, spongy. It measures 5X3 mm. in a calicle with a diameter of 1 1 >< 9 mm. The depth of the calicle is about 5 mm. Broken off calicles are not to be recognized from a Balanophyllia. The two specimens of Stat. 220 are broken off calicles, but one of them shows clearly the stumps of the stolons. 2. Rhizopsamniia minuta nov. spec. (Plate VII, fig. 9 and 10). Stat. 279. Ruma-Kuda-bay, Roma-island. Depth 36 meter. 1 ex. I have before me a large colony consisting of a great number of corallites incrusting an irreofular rough stone. The stolons, which spread over the surface of the stone in every direction consist of a trabecular network; they are not covered by ribs. The breadth of the stolon-like expansions is very variable, from one to five mm. The distance between the separate calicles is also very variable, they may touch one another or there may be a distance of one cm. between them. The corallites are small, not projecting more than two mm. above the base; they are cylindrical or a little tapering towards the top; their round calicle has a diameter of 5 mm. at most but usually less. Some of the corallites, and these are usually the smaller ones, are covered by a dense epitheca from the base to the calicular margin, in others only the basal part of the wall is covered by an epitheca; the uncovered upper portion may be one mm. or even two mm. long. The ribs are broad and flat, they may be smooth or covered by a few small, blunt granules. The small perforations of the wall are restricted to the furrows. The septa are arranged in four cycles which are usually incomplete. There may be a fifth cycle in a few systems of the largest calicles. The septa are exsert. Those of the first and second cycle are a little broader than the others near the calicular margin. The edge of the projecting part of the septa makes a curve of half a circle, than the septa slope gradually to the interior. As the septa are rather narrow near the top and all about of the same breadth the calicular fossa is regularly funnel-shaped. All the septa have teeth on the edge and are densely granulated on the sides, they are equally thin and nowhere spongy. The septa of the third cycle are short, those of the fourth cycle unite in pairs in front of those of the third cycle. In the smaller calicles also the septa of the second cycle do not reach the columella. No paliform lobes. The columella is concave, trabecular, its length being about one-third that of the calicle. Most of the calicles are very deep, their depth equaling their diameter. Other calicles are not so deep. 117 Heteropsammia Milne-1 el Haim Prof. Sluiti has given a report about tin- symbiosis of these corals with the Sipunculid-worms, in this case the Aspidosiphon corallicola Sluiti i. Het 'int M.-Edw. et II Plate VIII, fig. -,). II, M ilr Edwards cl I [aime i s.is. , .■•.-.. . Graj i S50. xiiiiwiti Miciulim Milne-Edwards 181 //<. 5i mper 1 872. Michelim renison-Woods 1^79. psammia michelim Moseley 1 881. Heteropsammia michelim Bourne 1905. Stat. 33. Bay of Pidjot, Lombok. Depth jj meter and Icss. 391 ex. St.it. 37. Sailus ketjil, Paternoster-islands. Depth 27 meter and less. 4 ex. Stat. 43. Anchorage off Pulu Sarassa, Postillon-islands. Depth up to 3'' meter. 10 ex. Stat. 47. Bay of Bima. Depth 55 meter. 2 ex. Stat. .;■ 1 . Sapeh-strait. Depth 69 meter. 1 ex. Stat. 71. Makassar. Depth up to 32 meter. 1 ex. >tat. 114. Kwandang-bay-entrance. Depth 75 meter. 1 ex. Stat. 1 M'. West of Kwandang-bay-entrance. Depth 72 meter. 3 ex. Stat. 142. Arichorage ofl Laiwui, coast of Obi Major. Depth 23 meter. 1 ex. Stat. 240. Banda. Depth from 9 till 45 meter. 3 ex. Stat. 313. Anchoi 1 1 East "l Dangai Besar, Saleh-bay. Depth up to 36 meter. 136 ex. Stat. 315. Anchora; I ast <>\ Sailus Besar, Paternoster-islands. Depth up to 36 meter. 1 ex. Iwii different forms can be recognized in this species, which are connected by transitional typical form ol Heteropsammia michelini has according to Milne-Edwards and Haimi th<- septa of the first, second and third cycles equal, exsert and thickened. In the other form these septa are hardly thicker than those of the higher cycles and they are not exsert, which is very conspicuous. The granules of the ribs are also iïner, so that the Hbs are not so rly visible. 2. Heteropsammia cochlea (Spengler). Madrepora cochlea Spengler 1781. Heterocyathus cochlea Gray 1850. Heteropsammia cochlea Milne-Edwards 1 Heteropsammia rotundata Semper 1S72. Heteropsammia rotundata Alcock 1 Heteropsammia aphrodes Alcock 1S93. Heteropsammia cochlea Bouvi 1 1895, Stat. 7. N ' "f Batjulmati (Java). Depth 13 meter and more. 3 ex. Stat. 33. Bay of Pidjot, Lombok. Depth 22 meter and less. 27 ex. Stat. 47. Baj "I Bima. Depth ;; meter. 1 ex. -i.it. '4. Kambaragi-bay, Tanah Djampeah. Depth up to 32 meter. ; ex. 91. Muai Ol Borneo. Depth up tO 34 nieter. 2 ex. t. 11.1. Kwandang-bay-entrance, Depth 75 meter. 6 ex. 116. West of Kwandang-bay-entrance. Depth j 2 meter. 4; ex. 1 18 Stat. 142. Anchorage off Laiwui, coast of Obi Major. Depth 23 meter. 2 ex. Stat. 154. o°7'.2N., I30°25'.5E. North of Waigeu. Depth 83 meter. 1 ex. Stat. 162. Between Loslos and Broken-islands, West-coast of Salawatti. Depth 18 meter. 1 ex. Stat. 164. i°42'.5 S., I30°47'.5 E. Arafura-sea. Depth 32 meter. 4 ex. Stat. 240. Banda. Depth from 9 to 45 meter. 2 ex. Stat. 303. Haingsisi, Samau-island. Depth up to 36 meter. 1 ex. Stat. 310. 8° 30' S., iiq°7'.5E. Sapeh-strait. Depth j$ meter. 1 ex. Bouvier gives a good description of the specimen of Milne-Edwards and Haime and also a good figure. The Heteropsammia rotundata of Semper agrees in all respects with this description. The "pali" mentioned by Semper are clearly visible in some specimens, in others they are less developed, and are sometimes wanting altogether. Also I could not find any difference with the Heteropsammia aphrodes of Alcock. The base is in some specimens as long as the calicle, in other specimens it is a little longer. 3. Heteropsammia geminata Verrill. Heteropsammia geminata Verrill 1S70. Lobopsammia Michelini Tenison-Woods 1879? Heteropsammia multilobata Moseley 1881. Heteropsammia geminata Alcock 1893. Stat. 90. I°I7'.sN., u8°53'E. East of Borneo. Depth 281 meter. 6 ex. Stat. 240. Banda. Depth from 9 to 45 meter. 1 ex. According to Tenison-Woods the Heteropsammia michelini is often compound; he had every gradation from the oval calicle passing to the figure of 8-outline until it is finally separ- ated by fissiparity. I examined several hundreds of specimens of Heteropsammia michelini and found one in which the septa of both sides touch and only one in which the separation in two calicles is complete. This latter too is an obvious H . michelini. In this species of Verrill and Moseley separation is the rule; small specimens (7 mm. long) already have the margin of the calicle irregularly curved, indicating in this way the beginning of the formation of new calicles by fissiparity. This phenomenon seems to be a very rare exception in H. michelini. I think that Tenison-Woods had these two species mixed together. The Heteropsammia multilobata Moseley is undoubtedly synonymous with the H. geminata of Verrill. Verrill seems to have examined only young specimens. He says: the corallites are but little elevated. That is the case in my small specimens. The two biggest specimens have the corallites elevated a few millimeters above the common base, agreeing in this respect with the description of Moseley. And that is the only difference between the species of Verrill and Moseley. 4. Heteropsammia spec. Stat. 2. Madura-strait. Depth 56 meter. 1 ex. Stat. 116. West of Kwandang-bay-entrance. Depth 72 meter. 2 ex. Stat. 153. o°3'.8N.j I30°24'.3E. North of Waigeu. Depth 141 meter. 1 ex. These specimens are very young or much damaged. That of Stat. 153 may be a Heteropsammia michelini. 119 Endopachys Londsdale. i. / M.-Edw. et II. dwards et I laimc 1848. Milnc-Edwards 1- 51. ut. Depth from 69 t" 91 meter. 1 ex. . | I North "i Waigeu. Depth 141 meter. 1 ex. The specimen from Stat. 51 is 26 mm. high. This is an old specimen with the lateral its much worn. 2. Endopachys spec. (Plate VIII, fig. 1 . St.it. 51. Molo-strait. üepth from 69 to 91 nieter. 1 ex. This specimen may be a juvenile stage of the preceding species. As Vaughan i s.i\s Endopachys is attached with a stalk during its youth. So this specimen. The stalk is 1 ; mm. thick and the calicle has a diameter of 7.5 < 4 mm. Leptopsammia M.-Edw. et II. \s I have pointed uut before this genus differs from all the other Eupsammidae by the arrangement of the septa. 1. Leptopsammia stokesiana M.-Edw. et II. (Plate VIII, fig. g . Leptopsammia stokesiana Milne-Hdwards et Haime 1S48. Leptopsammia stokesiana Milne-Edwards 1S60. St.it. 49a. Sapeh-strait. Depth 69 meter. 1 ex. This specimen wholly agrees with the description and figure given by MlLNE-EüWARDS and Haime. In all respects except the septa it resembles the Balanophyllia cornu of Mosetj ■ ■ 2. Leptopsammia conica nov. spec. (Plate VIII, fig. 14 and 15). Stat. 511. Sapeh-bay, Kast-coast of Sumbawa. Depth up to 36 meter. 2 ex. I 'rallum regularly conical, the base a slightly rounded point. It is free; there is even 1 tracé ..f former attachment, nor a shel! or anything else included in the basal part. The height of the bigger specimen is 22 mm. and of the smaller one 8 mm.. The ribs are obvious from the top to the basal point. They are narrower than the between them, irregularly covered with rough granules and slightly prominent. The much perforated on the ribs as well as in the furrows. In the older specimen the lightly oval in shape, measuring 1 ;, ■. ti.5 mm., in the younger one it is round, 7 mm. 120 69 The septa are arranged in five complete cycles as is shown in the diagram (fig. 9). The septa of the first and second cycle are slightly exsert. They have the same shape, only those of the first cycle are a little broader than those of the second. The upper half of these septa bends gradually downwards acquiring a breadth cf one-third the calicular diameter; the lower half falls perpendicularly downwards. The septa of all cycles have the edge entire, the septal faces are covered with granules arranged in regular rows parallel to the edge and possess obvious striae. The septa of the fourth cycle may or may not join those of the third cycle. The columella is small, its length being about one-fourth that of the calicle, formed by thin, twisted, coalescent lamellae, and prominent. The depth of the calicular fossa in the biggest specimen is S mm. and in the smallest 3 mm.. 3. Leptopsammia crassa nov. spec. (Plate VIII, fig. 11 and 12). Stat. 258. Tual-anchorage, Kei-islands. Depth 22 meter. 1 ex. This specimen is irregularly shaped ; it is attached at one side and has thirteen principal septa. It increases in diameter from the base to the top; the diameter is 6 mm. near the base and the diameter of the calicle is 12 >( ]o mm.. The basal portion is covered with a thin epitheca. The ribs are very indistinct, slightly projecting with shallow furrows between them. They are formed in the under portion of the corallite upwards to about four millimeters from the calicular margin by rows of fine, regular granules, with pores on the ribs and in the furrows. The uppermost portion of the corallite is covered with rough, irregular granulations and has irregular, large pores ; in this part the ribs are nearly invisible. The edge of the calicle is thickened, but the septa are thin over their whole extent. They are irregularly arranged at one side as is shown in the figure. They are not exsert. Those of the second cycle are equal to those of the first one. There are small teeth on the edge and very few small granules on the sides. They curve gradually downwards to about one-third of their length and one-third of the calicular diameter, then they fall perpendicularly to the interior. The septa of the third cycle are much smaller, with irregular teeth on the edge. Those of the fourth cycle are hardly present, very small, and with one exception not united with those of the third cycle. Columella rather small, about three mm. long, prominent, formed by a twisted lamella. The depth of the calicle is 6 mm.. The shorter axis of the calicular margin is on a slightly hiorher level than the longer axis. 4. Leptopsaiumia poculum nov. spec. (Plate VII, fig. 7). Stat. 260. 2.3 miles N., 630 W. from the North-point of Nuhu Jaan, Kei-islands. Depth 90 meter. 1 ex. The corallum is attached by a stalk to a slightlv enlareed base. This stalk is 8 mm. long and three mm. thick. Then the diameter increases rapidly to 6 mm.. The upper part is cylindrical, the calicle round. No epitheca. The ribs are broad and fiat, separated by narrow, shallow furrows; the) an d with numerous small granules. Only the upper ] .mi of th<- vvall, t«' aboul three mm. from the margin, is perforated and even there the pon 3 are few in number and verj small, situated '>n the ribs and in th>- furrows. rhe septa in fou . rhose of the firsl cycle are exsert to about mm. above the calicular margin, those "l the second cycle i>> one hall mm.. 1 lx- projecting upper porti. >n is spongy, oi epta are thin, their sides being covered with a few sm.tll granules. rhey bend rapidly towards the interior, getting their maximal breadth at about the height >>t' tl ular margin, then they fall steeply downwards. rhe septa ol the fourth small and not united with those of the third cycle. The edge of the septa of the tïrst and second cycle is entire, and of the third and fourth cycle covered with minute teeth. The columella is well developed, spongy, its length is about one half thal of the caliclc. The diameter <>f the calicle is 6 5 mm. The specimen is 23 mm. high. BIBLIOGRAPHY. A. Alcock. On some newly-recorded corals from the Indian Seas. Journ. Asiatic Soc. of Bengal. Vol. 62. 1893. Report on the deep-sea Madreporaria of the Siboga-expedition. Uitkomsten Siboga-Expeditie. XVIa. Leiden 1902. M. Bedot. Madréporaires d'Amboine. Revue suisse de Zoölogie. Tomé XV. 1907. M. DE BLAINVILLE. Manuel d'Actinologie ou de Zoöphytologie. Paris 1834. G. C. BoURNE. Report on the solitary corals collected by Prof. Herdman at Ceylon in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar by W. A. Herdman. Part 4. London 1905. E. L. Bouvier. Le commensalisme chez certain polyps madréporaires. Ann. des Sciences nat. 7 Série. Tomé 20. 1895. F. BRÜGGEMANN. Corals. Zoölogy of Rodriguez. Phil. Trans. Royal Soc. London. Vol. 168. 1879. J. D. Dana. Zoophytes. U.S. Exploring Expedition. VII. 1846. P. Martin Duncan. A description of the Madreporaria dredged up during the Expeditions of H. M. S. "Porcupine" in 1869 and 1870. Trans. Zool. Soc. London. Vol. 8. 1873. Madreporaria of the Mergui Archipelago. Journ. Linn. Soc. Zool. Vol. 21. London 1886. Milne-Edwards et J. Haime. Monographie des Eupsammides. Ann. Sc. nat. 31011e Série. Tomé 10. 1848. Polypiers fossiles des terrains paléozoiques. Arch. Mus. Hist. Nat. Paris. Tomé 5. 185 1. MlLNE-EDWARDS. Histoire naturelle des Coralliaires. Tomé 3. Paris 1860. EHRENBERG. Beitrage zur physiologischen Kenntniss der Corallenthiere im Allgemeinen, und besonders des rothen Meeres, nebst einem Versuche zur physiologischen Systematik derselben. Abh. d. kon. Ak. d. Wiss. 1832. Berlin 1834. J. STANLEY GARDINER. On the solitary Corals collected by Ur. A. Willey. Willey's Zoological Results. Part 2. 1898. On the anatomy of a supposed nevv species of Coenopsammia from Lifu. Willey's Zoological Results. Part 4. 1900. J. E. Grav. Description of some corals, including a new British coral discovered by W. MacAndrew, Esq. Ann. and Mag. Nat. Hist. second series. Vol. 5. 1850. F. WoüD JONES. Coral and Atolls. London 1900. W. Saville Kent. On some nevv and little-known Species of Madrepores, or Stony Corals, in the British Museum Collection. Proc. Zool. Soc. London 1871. C. B. KLUNZINGER. Die Korallthiere des Rothen Meeres. Berlin 1879. WILHELM Koch. Über die von Herm Prof. Dr. Greeff im Golf von Guinea gesammelten Anthozoen . Inaugural-Dissertation. Bonn 1886. H. DE LACAZE-DUTHIERS. Faune du Golfe du Lion. Coralliaires. Zoanthaires sclérodermés. Deuxieme mémoire. Arch. Zool. Exp. et Gen. 31011e Série. Tomé 5. 1897. R. P. Lesson. Zoophytes. Voyage aux Indes orientales de Ch. Bélanger. 1834. LlNNÉ. Systema Naturae. Ed. X. 1758. SlliOGA-EXriiDITIE XVIC. in Mai allen. Wissenscl deutschen riefsec-Exp. *Valdivia". Bd. 7. K n • nnachwuctu ipsamminen I II. I xpeditionen S.M. Schiff "Pola" in «l.i^ Rote Dcnkschr. kais. Ak. Wiss. Math.-Naturw. Klasse Bd. 80. Wien len. Ibidem Ibidem Riflfkorallen. Ibidem Ibidem II. MlCHELlN. I iophytologique. Paris 1841. II. N. M I "ii ilu Part ;. On the deep-sea Madreporaria. Report Challenger Exp. 7. tematik mul geographische Verbreitung der Steinkorallen. Zoül. fahrb. .ui Steinkorallen von der Sudkuste Ceylons. Zool. Jahrb. Abth. f. Syst. Bd. 4. 1 -. Deep-sea corals. Illustrated catalogue "f tin- Museum of Comparative Zoölogy at liarvard College. IV. Cambridge 1871. >>n the dredging operations of the LT.S. ("ast Survey St. "Blake". Huil. Mus. Comp. \ I. :. [878. Report "H the Corals and Antipatharia. Reports on the results of dredging, under the supervision Alexander A in the Caribbean Sea, 1878- '79, by the U.S. Coast Survey steamer "Blake". VI. Huil. Mus. c'omp. /ooi. Vol. 6. 1SS0. Ji>iin ). QuEL» it. Report on the Reef-corals. Report Challenger Expedition. Vol. 16. 1 HERM. REHBERG. Xeue mul wenig bekannte Korallen. Abh. aus dem Gebiete der Naturw. herausgegeben :n Naturw. Verein in Hamburg. Bd. 12. 1S92. RlDLEY. The Coral-fauna of Ceylon, with descriptions of new species Ann. and Mag. Nat. Hist. fifth series. Vol. II. I :- MPER. Uber Generationswechsel bei Steinkorallen und über das M.-Edwards'sche Wachstumsgesetz der Polypen. Zeitschr. f. v.iss. Zool. Bd. 22. [872. C. I'ii. SLUITER. Die Sipunculiden mul Echiuriden der Siboga-Expedition. Uitkomsten der Siboga-Exp. 25. Lelden l>)02. Beskrivelse over et ^anske besoiulerligt t'orall prodeskt. Nue Samling of det Danske videns- kabenes Selskabs Skriften. I. 1781. I. E. TENISON-WOODS. On Heteropsammia Michclini, of Edwards and Haime. Proc. Linn. Soc. X. S. \V. Vol. 4 T. WAYLAND VAUGHAN. Recent Madreporaria of the Hawaiian Islands and Laysan. Smithsonian Inst. I'. S. Nat. Mus. Huil. 59. 1907. hoal-water corals from Murray-Island (Australia), Cocos-Keeling-Islands and Fanning-Island. l'-ipers from the Dep. of marine Biology of the Carnegie Inst. of Washington. Vol. 9. 191S. A. E. Vi RRll 1 . List of the Polyps and Corals sent by the Museum of Comparative Zoology to other Institutions in exchange, with annotations. Huil. Mus. of Comp. Zool. Vol. 1. [864. s on the Radiata in the Museum of Vale College, with descriptions of new genera and species. Ti :n. Ac. of Arts and Sciences. Vol. 1. 1S66 — 1871. ntributions to Zoology from the Museum of Vale College. 7. Descriptions of new corals. Am. Journ. of Sc. and Arts. Second series. Vol. 49. 1N70. i-'l INDEX. page Acropora 64 aequiserialis, Coenopsammia 50 , Dendrophyllia 50 affinis, Balanophyllia 62 — , Rhodopsammia ... 62 amoena, Rhodopsatnmia 62 anastomosans, Dentipora 52 , Oculina 52 aphrodes, Heteropsammia 66 arbuscula, Dendrophyllia 53 Aspidosiphon corallicola 66 axifuga, Dendrophyllia 53 bairdiana, Balanophyllia 62 Balanophyllia 48, 49, 58, 62, 64, 65 affinis 62 bairdiana 62 comn 60 cornu 58, óo, 68 cornucopia 59 cumingi 63 elongata 63 fistula 59 floridana 61 gemmifera 60, 61 gigas 49, 58 imperialis 60 italica 64 malaccensis 60, 61 nouhuysi 59 parallela 62 rediviva 59 regularis 63 scabra 61 socialis 58, 62 spec 64 — tenuis 63 page carinata, Rhodopsammia 62 Caryophyllia italica 64 coarctata, Dendrophyllia 55 coccinea, Coenopsammia 55 — , Dendrophyllia. 55 — , Oculina 55 coccinea, Tubastraea 55 cochlea, Heteropsammia 66 — , Madrepora 66 Coenopsammia aequiserialis 50 coccinea 55 ehrenbergiana 55 manni 57 micranthus 50 nigrescens . . .' 50 ramiculosa 52 willeyi 56 conica, Leptopsammia 68 corallicola, Aspidosiphon 66 cornu, Balanophyllia 60 cornu, Balanophyllia 58, 60, 68 cornucopia, Balanophyllia 59 — , Dendrophyllia 59 crassa, Leptopsammia 69 cribrosa, Dendrophyllia 52 — , Dentipora 52 — , Oculina 52 cumingi, Balanophyllia 6], Dendrophyllia 49, 59 ■ — ■ aequiserialis 5° — arbuscula 53 — axifuga 53 — coarctata 55 — coccinea 55 Dendrophyllia cornucopia 59 Dendrophyllia cribrosa 52 I25 1 \ 55 Aorulenta ; i micranthus 49. 50, 5 1 minuscula 51 50 rami 63 5 5 58 willeyi 56 52 ibrosa opsammia 62 ehrenbergiana, 1 xmmia ;; . Dendrophyllia 55, 56 Dendrophyllia elong Lta, Balanophyllia — . Thecopsammia 63 End • 68 lyi Spec 68 Endopsammia 48 Eupsammia regalis 60 eupsammides, Heterocyathtts 66 fistula, Balanophyllia 59 — , Thecopsammia Flabellum 61 floridana, Balanophyllia 61 florulenta, Dendrophyllia 54 lin.ita, I k-teropsammia 67 gemmifera, Balanophyllia 60, 61 . Balanophyllia 49, 58 grac 1 ndrophyllia 52 grayi, Endopachys Heterocyathus cuchlca — eupsammides I Heteropsammia 66 aphrodes 66 hlca ninata 67 michelini ;;/// 67 rotundata 66 lyllia incerta, Rliodopsammia italica, Balanophyllia ihyllia japonica, Dendrophyllia 51 itopsammia (.8, 68 ca 68 ilum 69 stokesiana t,s Lobopsammia michelini ,67 robusta 55, Madrepora cochlea malaccensis, Balanophyllia 61 m.mni. ( 'oenopsammia 57 michelini, Heteropsammia — , Lobopsammia ,67 micranthus, Coenopsammia 50 . Dendrophyllia 4g, 50, 51 ulina 40 minuscula, Dendrophyllia 51 minuta, Rhizopsammia 64, 65 multilobata, Heteropsammia 67 nigrescens, Coenopsammia 50 , Dendrophyllia 4., nouhuysi, Balanophyllia 59 Oculina anastomosans 52 coccinea — cribrosa 52 micranthus 49 ovalis, Rliodopsammia 62 parallela, Balanophyllia 62 — , Rliodopsammia poculum, Leptopsammia 69 ramea, Dendrophyllia 50 ramiculosa, ( 'oenopsammia 52 rediviva, Balanophyllia 59 ilis, Eupsammia 60 regularis, Balanophyllia 63 — , Thecopsammia 63 Rhizopsammia 64 minuta 64, 65 verrilli 64 Rliodopsammia 1-8, 58, amnis amoena 62 carinata ditbia 75 page Rhodopsammia vncerta 62 ovalis 62 parallela 62 socialis 62 r olm sta, Lobopsammii 55, 56 rotundata, Heteropsa.nmia 66 scabra, Balanophyllia 61 scabrosa, Dendrophyllia 63 semiramea, Dendrophyllia 55 sibogae, Dendrophyllia 56 socialis, Balanophyllia $8, 62 ■ — , Rhodopsammia 62 socialis, Thecopsammia 62 spec, Balanophyllia 64 — , Dendrophyllia 58 — , Endopachys 68 — , Heteropsammia 67 page Stephanophyllia 48 Stereopsammia 58 stokesiana, Leptopsammia 68 tenuis, Balanophyllia 63 Thecopsammia 49, 58, 62 elongata 63 fistula 59 regularis 63 socialis 62 Trochopsammia 48 Tubastraea coccinea 55 verrilli, Rhizopsammia 64 willeyi, Coenopsammia 56 , Dendrophyllia 56 127 PLATE VIL i. Dendrophyllia axifuga M.-Edw. et H. Nat. size. i. Dendrophyllia cribrosa M.-Edw. et II. Nat. Size. 3. Dendrophyllia ehrenbergiana M.-Edw. et II. Nat. size. Fig. 4. Dendrophyllia ehrenbergiana M.-Edw. et II. Calicle enlargcd. 1 ndrophyllia florulenta nov. spec. N.it. size. I Dendrophyllia japonica nov. spec. Nat. size. ~. Leptopsammia poculum nov. spec. Nat. size. . Balanophyllia tennis nov. spec. Nat. size. I Rhizopsamtnia minuta nov. spec. Nat. size. I 1 ;. io. Rhizopsamtnia minuta nov. spec. Part of colony, enlarged. Siboga -Exped ilic XVI^ i ; d. Horst, Madreporaria . PLATE VIII. i. Rhisopsamm Ui nov. spec. Nat. UU nov. spec. Calicle enlarged. 3. Balanophyllia bair diana M.-Edvv. et II. Nat. si 4. F.ndopachys spec. juv. Nat. ;. Leptopsammia stokesiana M.-Edw. et II. Nat. size. fhyllia arbuscula nov. spec. N.u. size. 7. Heteropsammia michelini M.-Edw. et II. Two specimens. Nat. size. . Balanophyllia bair diana M.-Edw. et II. Several young specimens. Nat. size. bhyllia elegans nov. spec. Nat. size. ndrophyllia elegans nov. spec. Calicle enlarged. 11. Leptopsammia crassa nov. sper. Nat. size. . 1 2. Leptopsammia crassa nov. spec. Calicle enlarged. 1 3. Balanophyllia cornncopia (Pourt.). Nat. size. 14. Leptopsammia tonica nov. spec. Two specimens. Nat size. 1 15. Leptopsammia conica nov. spec. Calicle enlarged. [6. Balanophyllia nouhuysi nov. spec Nat. size. : . 1;-. Dendrophyllia willeyi (Gard.). Nat. - is. Dendrophyllia wille ■ < alicle enlarged. Fig. [9. Dendrophyllia sibogae nov. spec. Nat. size. 20. Dendrophyllia sibogae nov. spec. Calicle enlarged. Fig. 21. Dendrophyllia coccinea (Ehrb). Nat. size. Fig. ^j. Balanophyllia gigas Brüggemann. Nat. size. . Balanophyllia imperialis Sav. Kent. Nat. size. Fig. 30. Dendrophyllia minuscula Bourne. Nat. size. Sibo^a-ExpediHeXVI? v.d. Horst, Madreporaria. pi. """"' "'" ■■' ••■•'" '• ■' • ■ "■■■■'^,| ' ■■ :-:i. ■■■ -r1f- !,■.■,.. ...,-;., ■ RÉSULTATS DES EXPLORATIONS ZOOLOGIQUES, BOTANIQUES, OCÉANOGRAPHIQUES ET GÈOLOGIQUES ENTREPKISES AUS DJDES NÉERLANDAISES ORD3NTAIJES en 1899 — 1900, a bord du 8IBOQA 30DS IE COMMAITDEMENT DE G. F. TYDEMAN PUBLIÉS PAK MA.X WEBB3R Chef de 1'eipédition. •I. *II. *III. IV. ♦ IV til. V. *V1. *VII. «vin. *ix. *x. *xi. *xn. ♦xin. ♦xiv. ♦XV. ♦XVI. ♦XVII. xvm. XIX. ♦xx. *xxi. XXII. XXIII. ♦XXIVi. XXIV2. ♦ XXV. ♦XXVI. ♦XXVKm. XXVII. ♦XX VIII. ♦XXIX. ♦XXX. ♦XXXI. ♦XXXII. XXXIII. ♦XXXIV. XXXV. ♦XXXVI. ♦ XXXVII. ♦xxxvm. ♦XXXIX. ♦ XL. XLI. ♦ XLII. *XLIII. ♦XLIV. ♦ XLV. ♦XLVI. ♦XL VII. ♦ xLvm. ♦XLIX'. ♦XLIX». ♦ L. ♦LI. ♦Ln. ♦Lm. ♦LIV. LV. ♦ LVI. ♦LVII. Lvm. ♦LIX. ♦LX. ♦LXI. ♦LXII. Lxni. LXIV. ♦LXV. LXVI. Introduction et deacription de 1'eipédition, Max Weber, Le bateau et aon équipement scientifique, G. F. Tydeman, Résultats hydrographiques, G. F. Tydeman. Foraminifera, (F. W. Winter f). Xenophyopbora, F. E. Schulze. Radiolaria, M. Haitmann. Porifera, G. C. J. Vosmaer et I. Ijima '). Hydropolypi, A. Billard"). S'ylasterina, S. J. Hickson et MUo H. M. England. Siphonophora, Miles Lens et van Riemsdijk. Hydromedusae, O. Maas. Scyphomednsae, O. Maas. Ctenophora, MUo F. Moser. Gorgonidae, Alcyonidae, J. Versluys, S. J. Hickson, [C. C. Nutting et J. A. Thomson'). Pennatulidae, S. J. Hickson. Actiniaria, P. Mc Murrich1). Madreporaria, A. Aicock et C. J. van der Horst '). Antipatharia, A. J. van Pesch. Tarbellaria, L. von Graff et R. R. von Stummer. Cestodes, ( J. W. S p e n g e 1 f). Nematomorpha, H. F. Nierstrasz. Chaetognatha, G. H. Fowler. Nemertini, (A. A. W. Hubrechtf) et Mme G. Stiasny. Myzostomidae, R. R. von Stummer. Polychaeta errantin, R. Horst1). Polychaeta sedentaria, M. Caullery et F. Mesnil. Gephyrea, C. Ph. Sluiter. Enteropneusta, J. W. Spengel. Pterobranchia, S. F. H arm er. Brachiopoda, J. F. van Be ni melen. Polyzoa, S. F. Harmer '). Copepoda, A. Scott'). Ostracoda, G. W. Muller. Cirripedia, P. P. C. Hoek. Isopoda, H. F. Nierstrasz1). Amphipoda, Ch. Pérez. Caprellidae/jP. May er. Stomatopoda, H. J. Hans en. Cumacea, W. T. Cal man. Schizopoda, H. J. Hansen. Sergestidae, H. J. Hansen. Decapoda, J. G. de Man, J. E. W. Ihle et J. J.Tesch '). Pantopoda, J. C. C. Loman. Halobatidae, J. Th. Oudemans. Crinoidea, L. Döderlein et Austin H. Clark. Echinoidea, J. C. H. de Me ij e re. Holothurioidea, C. Ph. Sluiter. Ophiuroidea, R. Kohier. Asteroidea, L. Döderlein1). Solenogastres, H. F. Nierstrasz. Chitonidae, H. F. Nierstrasz. Prosobranchia, M. M. Schepman. Prosobranchia parasitica, H. F. Nierstrasz et M. M. Opisthobranchia, R. Bergh. [Schepman. Heteropoda, J. J. Tesch. Pteropoda, J. J. Tesch. Lamellibranchiata, P. Pelseneer et Ph. Dautzenberg '). Scaphopoda, MUe M. Boissevain. Cephalopoda, L. Joubin. Tunicata, C. Ph. Sluiter et J. E. W. Ihle. Pisces, Max Weber. Cetacea, Max Weber. Li9te des algue3, Mm» A. Weber1). Halimeda, Mlle E. S. Barton. (Mme E. S. Gepp). Corallinaceae, Mme A. Weber et M. F os 1 ie. Codiaceae, A. et Mme E. S. Gepp. Dinoflagellata. Coccosphaeridae, J. P. Lotsy. Diatomaceae, J. P. Lotsy. Deposita marina, O. B. Böggild. Résultats géologiques, A. Wichmann. Siboga-Expeditie PART III EUPSAMMIDAE BY Dr. C. J. VAN DER HORST With a plates and 9 textflgures Monographe XVI c of: UITKOMSTEN OP ZOOLOGISCH, BOTANISGH, OCEANOGRAPHISCH EN GEOLOGISCH GEBIED verzameld in Nederlandsch Oost-Indië 1899 — 1900 aan boord H. M. Siboga onder commando van Luitenant ter zee ie ld. G. F. TYDEMAN UITGEGEVEN DOOR Dr. MAX WEBER Prof. in Amsterdam, Leider der Expeditie (met medewerking van de Maatschappij ter bevordering van het Natuurkundig Onderzoek der Nederlandsche Koloniën) BOEKHANDEL EN DRUKKERIJ 100Kïkï5 E. J. BRILL LEIDEN 3p-"' ' '■""' nti .::■!■.. nu.,. !:■..... ■ .- ... ,■ ■ . , ,; ,;i;.;,; , . . ; . ■ .„■;, nmiWIIIIIUIIIIUUmill' iililll 1; IHUIIUH ■ ■•■'■■' ' '■■■•■ ■■ ■■ '.■■:i.i ■■■■: .!■■.. ■! !i-: .-.' . ... ■. . , . ..■: . . ; . Publié Avril 1922 * Les numéros avec un astérique ont déja paru; ceux marqués 1) seulement en partie J-'CJ<* Hö1 U • Sotucription Monofr-. 4 l'ourraf e complet *è\>mk*t ie l.iv: C. Ph. Sluiter. Die HoUluiricn der Siboga-Expedition. Mit 10 Tafeln. ƒ6.— / 9 — E. S. Barton. Th With 4 platea , 1.80 „ 2.70 ii Max Weber. [nti ription de l'expéditioa. Avec Liste des , 6.75 „ 10.20 4« Liw II] G. F. Tydeman. D D of the shipand applianccs uscd for scientific With iiul illnstr.it 1 2. — , 3. — 5« Livi H.F. Nierstrasz. TheSoleno fthe Siboga-Exp. With 6 plates. , 3.90 , 5.90 6« I.ivr. (Monogr. XIII' J. Versluys. der Siboga-Expedition. 1. Die Chrj Mit 170 Figuren im Text , 3. — , 4.50 jt I.ivr. iMonogr. XVI «) A. Alcock. on the Deep-Sea Madreporaria of the Siboga- Wltll : T 4.60 , 6.9O S^ Livr. (M C. Ph. Sluiter. Die Sipunculiden und Echiuriden der Siboga-Exp. Mit 4 Tafeln und 3 Figuren im Text ... „ 3. — „ 4.50 9* Livr. (Mon< G. C. J. Vosmaer and J. H. Vernhout. The Porifera of 'the Siboga- I. The genus Piacospongia. With 5 plates , 2.40 „ 3.60 IO* Livr. (Monogr. XI 1 OttO Maas. Die Scyphomedusen der Siboga-Expedition. Mit 12 Tafeln. „ 7.50 „ II. 30 H« Livr. (Monogr. XII) Fanny Moser. Die Ctenophoren der Siboga-Expedition. Mit 4 Tafeln. „ 2.80 „ 4.20 CXXIVJ P. Mayer. Die Caprellidac der Siboga-Expedition. Mit 10 Tafeln. „ 7.80 , 11.70 II G. F. Tydeman. Hydrographic results of the Siboga-Expedition. With charts and plans and 3 charts of deptha F 9. — „ 13.50 14e Livr. (Monogr. XLIII) J. C. H. deMeijere. Die Echinoidea der Siboga-Exp. Mit 23 Tafeln. „ 15. — , 22.50 15e Livr. (Monogr. XLVa) René. Koehler. Ophiures de 1'Expédition du Siboga. i« Partie. Ophiures de Mer profonde. Avec 36 Planches „ 16.50 , 29.80 16c Livr. (Monogr. Lil) J. J. Tesch. The Thecosomata and Gymnosomata of the Siboga- Kxpcdition. With 6 plates „ 3.75 „ 5.70 17e Livr. (Monogr. LVIa) C. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. I. Abteilung. Die socialen und holosomen Ascidien. Mit 15 Tafeln „ 6.75 „ 10.20 iSc Livr. (Monogr. LXI) A. Weber— van Bosse and M. Foslie. The Corallinaceae of the Siboga- Expedition. With 16 plates and 34 textfigures ... „ 12.50 , 18.80 19e Livr. (Monogr. VIII) Sydney J. Hickson and Helen M. England. The Stylasterina of the Siboga Expedition. With 3 plates „ 1.50 „ 2.30 20* Livr. (Monogr. XLVIII) H. F. Nierstrasz. Die Chitonen der Siboga-Exp. Mit 8 Tafeln. „ 5.— „ 7.50 2i« Livr. (Monogr. XLV^) René Koehler. Ophiures de 1'Expédition du Siboga. 2e Partie. Ophiures Iittorales. Avec 18 Planches „ 10.25 „ 15.40 22' Livr. (Monogr. XX VUts) Sidney F. Harmer. The Pterobranchia of the Siboga-Expedition, with an account of other species. With 14 plates and 2 text-figures „ 6.75 „ 10.20 23e Livr. (Monogr. XXXVI) W. T. Calman. The Cumacea of the Siboga Expedition. With 2 plates and 4 text-figures . „ 1.80 B 2.70 24e Livr. (Monogr. LVI«) C. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. Supplement zu der I. Abteilung. Die socialen und holosomen Ascidien. Mit 1 Tafel. B — .75 , 1.20 25e Livr. (Monogr. L) Rud. Bergh. Die Opisthobranchiata der Siboga-Exped. Mit 20 Tafeln. „ n.25 , 16.90 26* Livr. (Monogr. X) OttO Maas. Die Craspedoten Medusen der Siboga-Exp. Mit 14 Tafeln. „ 9.2^ „ 1390 27e Livr. (Monogr. XIII a) J. Versluys. Die Gorgoniden der Siboga-Expedition. II. Die Primnoidae. Mit 10 Tafeln, 178 Figuren im Text und einer Karte . . . „ 12.50 „ 18.80 28e Livr. (Monogr. XXI) G. Herbert Fowler. The Chaetognatha of the Siboga Expedition. With 3 plates and 6 charts „ 4.20 „ 6.30 29e Livr. (Monogr. LI) J. J. Tesch. Die Heteropoden der Siboga-Expedition. Mit 14 Tafeln. „ 6.75 „ 10.20 30c Livr. (Monogr. XXX) G. W. Muller. Die Ostracoden der Siboga-Exped. Mit 9 Tafeln. „ 3.50 , 5.30 31e Livr. (Monogr. IV 'bis) Franz Eilhard Schulze. Die Xenophyophoren der Siboga-Exped. Mit 3 Tafeln ... „ 2.40 „ 3.60 32= Livr. (Monogr. L1V) Maria Boissevain. The Scaphopoda of the Siboga Expedition. With 6 plates and 39 textfigures „ 4.80 „ 7.20 33e Livr. (Mom.gr. XXVI) J. W. Spengel. Studiën über die Enteropneusten der Siboga-Exp. Mit 17 Tafeln und 20 Figuren im Text „ 14. — ,21. — 34e Livr. (Monogr. XX) H. F. Nierstrasz. Die Nematomorpha der Siboga-Exp. Mit 3 Tafeln. „ 2.80 „ 4.20 35e Livr. (Monogr. XIII c) Sydney J. Hickson und J. Versluys. Die Alcyoniden der Siboga- Exped. I. Coralliid.é, II. 1'^cndocladochonus Hicksoni. Mit 3 Tafeln und 16 Figuren im Text. „ 2.20 „ 3.30 36e Livr. (Monogr. XXXI a) P. P. C. Hoek. The Cirripedia of the Siboga Expedition. A. Cirripedia pedunculata. With 10 plates „ 5.40 „ 8.10 5j* Livr. (Monogr. XLIL/i L. Döderlein. Die gesticlten Crinoidcn der Siboga-Expedition. Mit 23 Tafeln und 12 Figuren im Text „ 8. — „ 12. — 38c Livr. (Monogr. IX) Albertine D. Lens and Thea van Riemsdrjk. The Siphonophores the Siboga Expedition. With 24 plates and 52 textfigures „ 13. 50 „ 20.30 39e Livr. (Monogr. XLIX'a) M. M. Schepman. The Prosobranchia of the Siboga Expedition. Part I. Rhipidoglossa and Docoglossa, with an Appendix by Prof. R. BERGH. With 9 plates and 3 textfigures , 4.80 , 7.20 40* Livt J. C. C. Loman. Die I'antopoden der Siboga-Expedition. Mit i, Tafeln und 4 Figuren im Text . : . . „ 6.25 „ 9.40 4if IA L; J. E. W. Ihle. Die Appendicularicn der Siboga-Expedition. Mit 4 Tafeln und 10 1 : „ 4. 80 , 7.20 M. M. Schepman und H. F. Nierstrasz. Parasitische Proso- branchicr der Siboga-Expedition. Mit 2 Tafeln „ 1.20 , 1.80 43 44' 4Se 46e ƒ 4.50 / 6.80 » 26-— » 39-— 49 Prix : Souseription Monographies a 1'ouvrage complet séparées ivr. (Monogr. XLIX'£) M. M. Schepman. The Prosobranchia of the Siboga Expedition Part II. Taenioglossa and Ptenoglossa. With 7 plates ! Livr. (Monogr. XXIXö) Andrew Scott. The Copepoda of the Siboga Expedition. Part I. Free-swimming, Littoral and Semi-parasitic Copepoda. With 69 plates. Livr. f Monogr. LVI3) C. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. II. Abteilung. Die Merosomen Ascidien. Mit 8 Tafeln und 2 Figuren im Text. „ 5.75 „ 8.70 Livr. (Monogr. XLIX'^r) M. M. Schepman. The Prosobranchia of the Siboga Expedition. Part III. Gymnoglossa. With 1 plate „ — .80 „ 1.20 47e Livr. (Monogr. XIII^) C. C. Nutting. The Gorgonacea of the Siboga Expedition. III. The Muriceidse. With 22 plates „ 8.50 „ 12.80 48e Livr. (Monogr. Xlllè1) C. C. Nutting. The Gorgonacea of the Siboga Expedition. IV. The Plexauridae. With 4 plates ie Livr. (Monogr. LVIaQ J. E. W. Ihle. Die Thaliaceen (einschliesslich Pyrosomen) der Siboga-Expedition. Mit 1 Tafel und 6 Figuren im Text. Livr. (Monogr. XIII ó2) C. C. Nutting. The Gorgonacea of the Siboga Expedition. V. The Isidae. With 6 plates Livr. (Monogr. XXXVII) H. J. Hansen. The Schizopoda of the Siboga Expedition. With 16 plates and 3 text figures Livr. (Monogr. XIII P) C. C. Nutting. The Gorgonacea of the Siboga Expedition. VI. The Gorgonellidae. With 11 plates 3e Livr. (Monogr. XV a) J. Playfair Mc Murrich. The Actiniaria of the Siboga Expedition. Part I. Ceriantharia. With 1 plate and 14 text figures 4e Livr. (Monogr. XIII£4) C. C. Nutting. The Gorgonacea of the Siboga Expedition. VIL The Gorgonidae. With 3 plates Livr. (Monogr. XXXIX a) J. G. de Man. The Decapoda of the Siboga Expedition. Part I. Family Penaeidae Livr. (Monogr. LXII) A. & E. S. Gepp. The Codiaceae of the Siboga Expedition including a Monograph of Flabellarieae and Udoteae. With 22 plates Livr. (Monogr. Xlllè* C. C. Nutting. The Gorgonacea of the Siboga Expedition. VIII. The Scleraxonia. With 12 plates Livr. (Monogr. XLIXV) M. M. Schepman. The Prosobranchia of the Siboga Expedition. Part IV. Rachiglossa. With 7 plates Livr. (Monogr. Vla1) G. C. J. Vosmaer. The Porifera of the Siboga-Expedition. oe ie 2e 5e 7e 8e 1.60 i-75 2.25 12.75 4-— 2.20 1.20 2.60 2.40 2.70 340 19.20 6.— 3-30 1.80 3-90 II. The genus Spirastrella. With 14 plates 62e 63e 64e 65e 66e 60e Livr. (Monogr. XXXIX a1) J. G. de Man. The Decapoda oi the Siboga Expedition. Part II. Family Alpheidae 6ie Livr. (Monogr. lAlla) Paul Pelseneer. Les Lamellibranches de 1'Expédition du Siboga. Partie Anatomique. Avec 26 planches Livr. (Monogr. XXIV' a) R. Horst. Polychaeta errantia of the Siboga Expedition. Part I. Amphinomidae. With 10 plates Livr. (Monogr. Llllè) Ph. Dautzenberg et A. Bavay. Les Lamellibranches de 1'Expéd. du Siboga. Partie Systématique. I. Pectinidés. Avec 2 planches Livr. (Monogr. XLIX1^) M. M. Schepman. The Prosobranchia of the Siboga Expedition. Part V. Toxoglossa. With 6 plates and 1 textfigure • Livr. (Monogr. LVII) Max Weber. Die Fische der Siboga-Expedition. Mit 12 Tafeln und 123 Figuren im Text Livr. (Monogr. XLIX/) M. M. Schepman. The Prosobranchia, Pulmonata and Opistho- branchia Tectibranchiata Tribe Bullomorpha of the Siboga Expedition. Part VI. Pulmonata and Opisthobranchia Tectibranchiata Tribe Bullomorpha. With 2 plates 6ye Livr. (Monogr. XXXI b) P. P. C. Hoek. The Cirripedia of the Siboga-Expedition. B. Cirripedia sessilia. With 17 plates and 2 textfigures 68e Livr. (Monogr. lAXd) A. Weber-van Bosse. Liste des Algues du Siboga. I. Myxophyceae, Chlorophyceae, Phaeophyceae avec Ie concours de M. Th. REINBOLD. Avec 5 planches et 52 figures dans Ie texte . 69e Livr. (Monogr. XXXIXa) J. G. de Man. The Decapoda of the Siboga Expedition. Supplement to Part I. Family Penaeidae. Explanation of Plates 70e Livr. (Monogr. VII a) A. Billard. Les Hydroïdes de 1'Expédition du Siboga. I. Plumularidse. Avec 6 planches et 96 figures dans Ie texte 71e Livr. (Monogr. XXXIXb) J. E. W. Ihle. Die Decapoda brachyura der Siboga-Expedition. I. Dromiacea. Mit 4 Tafeln und 38 Figuren im Text 72e Livr. (Monogr. XXXII a) H. F. Nierstrasz. Die Isopoden der Siboga-Expedition. I. Isopoda chelifera. Mit 3 Tafeln ?e Livr. (Monogr. XVII) A. J. van Pesch. The Antipatharia of the Siboga Expedition. With 8 plates and 262 textfigures Livr. (Monogr. XXXIXa1) J. G. de Man. The Decapoda of the Siboga Expedition. Supplement to Part II. Family Alpheidae. Explanation of Plates Livr. (Monogr. XXVIIItf) Sidney F. Harmer. The Polyzoa of the Siboga Expedition. Part I. Entoprocta, Ctenostomata and Cyclostomata. With 12 plates Livr. (Monogr. XXXIX ar) J. G. de Man. The Decapoda of the Siboga Expedition. Part III. Families Eryonidae, Palinuridae, Scyllaridae and Nephropsidae. With 4 plates 12.50 „ 18.80 4.80 » 7-20 s-— „ 7-50 6.20 » 9-30 6.40 v 9-6o 10. — » is-— 3-85 „ 5.80 2.25 4.80 22. 73e 74e 75e 76e i-75 6.— 3.20 5-75 3-5° 2.15 10.75 7-— 8.80 3-75 3-4° 7.20 33-— 2.70 12. — 9-— 4.80 8.70 5-3° 3-30 16.20 10.50 13.20 5.70 I'iix: Soutcription MuoopA; k l'ouvrmgt complet Ujarèc» Xl\') Sydney J. Hickson. The Pennatukcea of the Siboga Expcdition, with Wit h \o pbltes, 4J text figuret and i cliart . . . . ƒ10.75 / 16.20 Livr. (W \XXÏX."I J. E. W. Ihle. 1 1 brachyura der Siboga-Expedition. II . Mit 39 Figuren im Text „ 1.90 „ 2.90 ' : \. O. B. Böggild. Meereagrundproben der Siboga-Expedition. Mit . afel und 1 Karl 2.25 , 3.40 Sc* R. Horst. Polychaeta errantia <>f the Siboga Expedition. l'.irt 1). Aphroditida talidae. With 19 platea and 5 textngurea . . . . „ 7.75 , 11.70 L. Döderlein. Die Aateriden der Siboga-Expedition. I. 1 11^ Astropecten imd ihre Stammesgeschichte. Mit 17 Tafeln und 20 Figuren > 8.75 , 13.20 , \IX<) J. J. Tesch. The Decapoda brachyura of the Siboga Expcdition. I. Hymenosomidac, RetropTumidae.Ocypodidae.GrapaidaeaiidGecarcinidae. With 6 platea. , 5. — , 7.50 $y XLIIl) Austin H. Clark. The unstalked Crinoids of the Siboga Expcdition. With 28 plates and 17 textngurea. „ 16. — ,24. — l.ivr. (Y XXXIX.1) J. j. Tesch. The Decapoda brachyura of the Siboga Expcdition. U. Goneplacidae and Pinnotheridae. With 12 plates , 6.75 , 10.20 85e Livr. (Monogr. XXXIX**) J. E. W. Ihle. Die Decapoda brachyura der Siboga-Expedition. III. Oxyatomata: Calappidae, I.eucosiidae, Raninidac. Mit 71 Figuren im Text. . . . „ 5.60 , 8.40 86* Livr. (Monogr. XXXVIII) H. J. Hansen. The Sergcstida- of the Siboga Expedition. With 5 plates and 14 text figures „ 4.50 , 6.80 S;c Livr. (Monogr. XXXIXa*) J. G. de Man. The Decapoda of the Siboga Expedition. 1'art IV. Families Pasiphajidae, Stylodactylidae, Hoplophoridae, Nematocarcinidae, Thalassocaridae, Pandalidae, Psalidopodidae, Gnathophyllidae, Proces- sidae, Glyphocrangonidae and Crangonidae. With 25 plates . . . . „ 18. — „ 27. — 88* Livr. (Monogr. XLVI£) L. Döderlein. Die Asteriden der Siboga-Expedition. II. Die Gattung Luidia und ihre Stammesgeschichte. Mit 3 Tafeln und 5 Figuren im Text. „ 5. — „ 7.50 89e Livr. (Monogr. LIX£) A.Weber-van Bosae. Liste des Algues du Siboga. II. Rhodophyceae. Première Partie. Protoflorideae, Nemalionales, Cryptonemiales. Avec 3 planches et 57 figures dans Ie texte „ 6.75 „ 8.50 90* Livr. (Monogr. XVI£) C. J. van der Horst. The Madreporaria of the Siboga-Expedition. Part II. Madreporaria Fungida. With 6 plates , 4. — „ 5. — 91* Livr. (Monog. XLVI') L. Döderlein. Die Asteriden der Siboga-Expedition. 1. Porcellanasteridae , Astropectinidae, Benthopectinidae. Mit 13 Tafeln und 7 Figuren im Text. . „ 10.80 , 1350 92e Livr. (Monogr. XVI c) C. J. van der Horst. The Madreporaria of the Siboga Expedition. Part III. Eupsammidae. With 2 plates and 9 textfigures „ 2.50 , 3.75 Voor de uitgave van de resultaten der Siboga-Expeditie hebben bijdragen beschikbaar gesteld: De Maatschappij ter bevordering van het Natuurkundig Onderzoek der Nederlandsche Koloniën. Het Ministerie van Koloniën. Het Ministerie van Binnenlandsche Zaken. Het Koninklijk Zoologisch Genootschap »Natura Artis Magistra" te Amsterdam. De »Oostersche Handel en Reederij" te Amsterdam. De Heer B. H. de Waal, Oud- Consul-Generaal der Nederlanden te Kaapstad. M. B. te Amsterdam. The Elizabeth Thompson Science Fund. Dr. J. G. de M. te Iersejce.