ATW GIBBS Jp oe - THE DANISH LF 2 Qik Biba we Gea e CONTENTS: LUTKEN: THE ICHTHYOLOGICAL RESULTS. ease AND OTHER SELACHIANS. PUBLISHED AT THE COST OF THE GOVERNMENT BY THE DIRECTION OF THE ZOOLOGICAL MUSEUM OF THE UNIVERSITY. COPENHAGEN. 7 : H. HAGERUP. BIANCO LUNO (F. DREYER), PRINTER TO THE COURT. 1899. THE DANISH INGOLF EXPEDITION. VOLUME Il. 1. fia tel ry OLOGICAL KESULTS. CHR. LUTKEN. WITH 4 PLATES, 1 MAP, 2 FIGURES IN THE TEXT AND A LIST OF THE STATIONS. air DS ae OD) ee ee Sees a at Lah a COPENHAGEN. — BIANCO LUNO (F. DREYER), PRINTER TO THE COURT. OM 1808. ( < aad edad uw Mee «eG i aE ae, Oe The Ichthyological Results of the Expeditions of the ,,Ingolf”. By Chr. Lutken. HE «oceanic» ichthyological earnings of the 2 expeditions of the «Ingolf» in 1895 and 1896 are in 1 so far rather considerable as they comprise c. 29 genera and c. 44 species; but they do not com- prise many types which are new, viz. not known or described in our own days or in earlier times. But they number several forms which were not formerly known at our museum or from the northern seas more accessible to us, and there are species among them which have been known hitherto in few specimens only and thus from a very limited study-material. The knowledge of the distribution of several types is therefore now extended, as also the knowledge of their occurrence over an area hitherto little examined, and an addition somewhat considerable is thence procured to the earnings of the earlier expeditions of the «Challenger», «le Talisman», «le Travailleur>, «the Blake», «the Alba- tross», «the VGringen», «the Knight Errant», «l’Hirondelle» and «the Princesse Alice» etc. It was so far a disappointment that the expedition did not forward us several rather well known arctic or abyssal types that might have been expected, fi. apodal Lophiorder, arctic picked dog-fishes, Aphanopus etc. The impossibility of using the «weel» of the prince of Monaco in seas of a northern and troublesome character and the difficulties, to say the least, of using angles must wear the blame for the deficiencies in this respect. The types, which will be specially mentioned in the following sheets and partly figured in the accompanying plates, are chiefly Co/tozder (in the wider, older sense of the word), the Zycodes, Liparides and allied types (Paraliparis), Rhodichthys, Macrurus and other deep-sea Gadoids and deep-sea fishes (Alepocephalus, Antimora), deep-sea-Murenoids, Nota- canthint and certain Raja-species. That the account of Scofelini is rather scarce is due to the diffi- culties of capturing those fragile fishes. That the results as here exposed may be found somewhat uncertain in several cases —in certain difficult genera — owing in part to my personal defects, I shall not deny, but I hope that the special difficulties of those cases will be my excuse. The number of the plates I have reduced to the most necessary. I have specially made use of the colored sketches made on board of the «Ingolf» of animals still living or freshly caught, which made it possible to produce some colored figures. Mr. Adolph Jensen has been kind enough to assist me with the revision of the manuscript and in other ways; I owe to him several important corrections and emendations and bestow on him my best thanks for his aid. The Ingolf-Expedition. IL. tr. 2 THE FISHES OF THE «INGOLF» EXPEDITIONS. Skates (Rays): the genus Raya. Raja hyperborea Collett. Collett: Den norske Nordhavs Expedition. Fiskene. p.9, pl. I, fig. r—2. Giinther: Report on the deep-sea fishes. Expedition of the Challenger. p.8, pl. IV, A, B, © Also figured in Goode & Bean: «Oceanic Ichthyology», pl. IX, fig. 28, and by Smitt in «Skandi- naviens Fiskar», p. 1110—1I, fig. 317—18. The Norvegian North-sea-expedition caught a male specimen, about 20 inches (518™™) long at a depth of 459 fathoms, 115 kilometres West of Spitzbergen (Norskoerne). The «Knight Errant» captured in the Faroe-Channel a larger male, 24'/, inches long, at 608 fathoms together with 2 smaller females (61/,inches) and a female (8 inches); a very young male was captured at 4oo fathoms. On the «Ingolf»-expeditions were caught 3 specimens, 2 females and a male, similar in size to those of the «Voringen». The localities were the following: Station 113 (to the south of Jan Mayen), 69° 31’ Lat. North, 7° 06’ Longitud. West, the depth 1309 fathoms. Temperature at the bottom + 1°.0 C., nature of the bottom: Avloculina-clay. A female, 243/, inches long from the point of the snout to the end of the tail, greatest breadth 20*/, inch. Station 140 (North of the Faroe Islands), 63° 29' Lat. North, 6°57’ Long. West, depth 780 fathoms. Temperature at the bottom + 0°9 C, its nature: gray mud. A female, its length 211/, inch, breadth 17 inches. Station 141 (North of the Faroe Islands), 63° 22’ Lat. North, 6°58’ Long. West, depth 679 fathoms. Temperature at the bottom +o0°.6 C. Gray mud. Male: length 25 inches, breadth 18 inches. The description of Prof. Collett may be compared with that of Dr. Giinther, loco citato. In this Arctic Ray there is apparently no difference according to age in the physiognomy, contour ete. Nevertheless it should be noted, that the delicate dorsal spinous clothing has a larger or more complete extension in the young specimen figured by Giinther than in the known larger individuals. The differences attributable to individual variation and appearing by a comparison between the spe- cimens of Collett and Gitinther are enumerated by Lilljeborg (Sveriges och Norges Fiskar III, p- 604) and by Smitt (Skandinaviens Fiskar p. 1112). I shall add some remarks on the variations in shape, spinulation etc. which make themselves apparent when comparing the specimens before me, two of which are females. The typical specimen of Collett has on both sides 3 larger spines in a series inside of the upper margin of the eye, the first pair before a line between the anterior margin of the eyes, the hindmost close behind a line between the posterior margin of the parietal foramina. There are further 2 pair of shoulder spines and in the middle line of the body a series of 26 spines and a small spine between the 2 dorsal fins. This little spine is wanting in all our 3 specimens and should therefore be omitted in the specific diagnosis. The supraorbital spines are in all as indicated above, if one of them is not lost on one side, as is apparently the case in one of them. ‘The shoulder spines may be in 2 or 3 pairs. In the unpaired dorsal line the number of spines may be from 21 to 31. The teeth are delicate and acute and show no sexual difference with the exception that one female (from station 140) is almost quite toothless. Two of our specimens are on the back uniformly dark brown, as are those from the THE FISHES OF THE «INGOLF» EXPEDITIONS. 3 «Voringen»-expedition; the third, a male, is adorned with numerous light specks which are however not sharply defined. On the belly this specimen is generally dark with some rather regularly distrib- uted smaller or larger light spots; the surroundings of the mouth are white. The other female is light on the lower side of the head and on the whole median party near to the anus, but else dark. The male is generally light on the ventral side with darker patches in a fashion similar to the specimen of the «Voringen», but with greater preponderance of the white or colorless parts. In the female with the dark belly the first dorsal fin is proportionally very small. The «cards» are relatively little developed on the back of the pectoral fins of our male, and its appendices genitales are not larger than in the Norvegian typical specimen (ab. 2 inches); therefore all the specimens hitherto obtained of this sex and species are relatively young, though of a rather considerable size. The flat lower surface of the tail is continued as a low dermal fold at both sides. Raja ingolfiana Ltk. n. sp. (Tab.1, fig. 1). Thus I name provisionally a male specimen of Raja — very young, judging from its little developed appendices genitales (scarcely an inch long), captured by the «Ingolf»-expedition at Station 32 (off Holstensborg) at a depth of 318 fathoms on 66°35! Lat. North, 56°38’ Long. West, where the bottom was brownish-gray mud with very numerous Riabdammine and some pebbles, the bottom temperature of the water 3.9° C. This probably new species belongs to the less acutely pointed species; measured in the usual manner the length of the snout equals half the breadth over the middle line of the eyes. The external angles of the disk are more rounded, less acutely pointed, its anterior margins more straight, less sinuous than in R. yperborea, the external laps of the ventral fins less narrow. The tail is much stouter, both longer and more robust; its length is 12 inches, the distance from the point of the snout to the origin of the tail 131/, inches, the total lenght thus 251/, inch. 24 supraorbital spines may be counted, some smaller ones on the back of the snout, and some scapular spines (3 placed in a triangle); in the median line of the tail and the back a dense series of 47 spines and along the lateral margins of the tail (where the lateral folds are in R. hyferborea) a dense series of somewhat smaller spines. There are no spines between the dorsal fins which are placed close together. Other- wise the dorsal face is only slightly spinulous with few isolated spinules and the ventral face is quite naked. Between the medial series of spines on the tail and the 2 lateral series is on both sides a zone of numerous, hardly visible asperities (spinelets); the dorsal fins are clothed in the same manner, but the ventral ones naked. The teeth are small and pointed. The ventral face of the body is whitish without spots, only with some dark parts on the lower face of the tail and the ventral fins, and deli- cately furrowed; the dorsal surface is brown. Before this species can be studied in both sexes and different ages its place in the series of types in the family of Rays can not be fixed. Of the many Eastamerican species only &. erinaceus and ocellata have been accessible to me, none of the more pointed species. I shall refer the reader to S. W. Garmans memoir «On the Skates (Raya) of the eastern coast of the United States» in the «Pro- ceedings of the Boston Society of Natural History», Vol. XVII (1874), p. 170 etc, to Goode and Beans «Oceanic Ichthyology (1895) p. 24-30, to Gilberts «The ichthyological collections of the * I 4 THE FISHES OF THE «INGOLF» EXPEDITIONS. U. S. fish commission steamer Albatross» (Report U. S. Comm. Fish ete.) 1896 and to Jordan and Evermanns: «The fishes of North and Middle America» (Bulletin United States National Museum Nr. 47, 1896), p. 67—76. Raja rostro acutiusculo, pinnis pectoralibus antice rotundatis, cauda sat robusta, spinis non- nullis supraorbitalibus, rostralibus et scapularibus, c. 47 in parte mediana dorsi et caudee, interpinnali- bus caudz nullis. Raja Fyllz Ltk. (Tab. I, fig. 2). R. ornata Garman? A male specimen captured on Station 25 off Godthaab (63° 30’ Lat. North, 54° 25’ Long. West, at 582 fathoms, at a temperature at the bottom of 3°.3 C), which has a length of 555" (about 21 inches) and a greatest diameter of the disk of 310™™ (113/, inches), and whose large appendices genitales demonstrate that it is adult and capable of procreation, agrees else completely with another specimen somewhat smaller (470™™), taken in 1889 in the Denmark Strait at 426 fathoms, and referred by me («Videnskabelige Meddelelser fra den naturhistoriske Forening» 1891, p. 32) to the Raya Fyll@, established not long time before (ibid. 1887, p. 1—4, pl.I) by me as a new species on a younger female specimen from the same seas. This specimen, which is thus the proper original specimen of the species, had, to be sure, in many respects another aspect, and it was therefore with some doubt that I identified the adult male from the Denmark Strait (1889) with the young female from the Davis Strait (1884). I was induced to this determination by the fact, that other species of Rays were not known at that time from the Greenland seas than Raya Fylle and R. radiata, and by the examination of a couple of still younger males from the Davis Strait (likewise from 1889). The new capture from 1895 induced me to take up the question again and to examine as far as possible, if the difference of age or sex is so large as supposed by me or if a specific difference had been overlooked. The two elder specimens I shall mention together, designating however the larger figured Ingolfian specimen (from 1895) as No. I, the somewhat smaller one (from 1889) as No. II. The incisions of the margins of the disk (at the height of the parietal foramina) are still sharper defined in No. I than in No. Il. The other portion of the pectoral fin is rounded in a cor- responding manner in both. The genital appendages are r10™™ long in No.I, ro5™™ in No. II. There are larger and smaller spines in a marginal zone more or less broad, commencing at the point of the snout and terminating somewhat before the terminal portion of the groups of pectoral «cards» which are generally speaking comprised in the said zone; the following zone, comprising the rest of the back of the pectoral fins and of the trunk, is naked with the exception of the proper median party, which begins at the point of the snout, embraces the interorbital space and is continued over the median portion of the trunk and the whole backside of the tail. Covered with larger spines of the &. radiata- ‘type are especially the back of the snout, the space between the eyes especially the supraorbital margin, a rather broad scapular party with many spines and a broad zone at the median part of the back, con- tinued on and covering the whole dorsal part of the tail. According to the more or less pronounced stoutness of the tail, there may be counted 3, 4 or 5 spines beside each other, forming rather regular THE FISHES OF THE «INGOLF» EXPEDITIONS. 5 rows, with numerous fine or somewhat larger spinules on the lateral margins of this part of the body. The teeth are small, fine and pointed; I counted c.34 rows from one corner of the mouth to the other. The dorsal fins are closely approximated, not even completely separated. The specimen No.I is light grayish on the back, uniformly dark on the belly; on the other hand No. II is quite white on the belly, light brownish-grayish on the back. On the ventral face there are, as most commonly in the Skates, no thorns at all. A younger male, 201™™ long and 106™™ broad, from the Davis Strait (235 fathoms) with minute genital appendices is mentioned by me previously (l.c. 1891, p. 32). I therefore restrain myself to some brief remarks on this specimen, compared with the here described adult males. The point of the snout is hardly visible as such. The pectoral margin of the disk is slightly sinuous, not forming a quite straight line; but a sharp incision does not occur. The back is quite covered with small spines until towards the posterior margin of the pectoral fins; also the ventral fins are partially thorny, while at a later stage they are naked. But between this uni- form clothing of the trunk, the fins and the tail some spines a little larger make their appearance, some on the back of the snout, 3 pairs of supra- orbitals, one pair of suprascapulars and a single row of about 37 in the median line of the back, com- mencing behind the head and continued almost to the dorsal fins on the tail — accompanied on the back of the tail by middle-sized spines forming the MA transition to the general clothing with spinelets. Thus during the growth of the animal a rich F i Raja Fylle jun. fem. The typical specimen, development of larger spines takes place untill the d ae # somewhat diminished. above described stage of evolution is attained. The color of the back is brown with some more or less distinct round specks and 2 lighter parties on each pectoral, rather posteriorly. The ventral surface is light with brownish spots and marbled. A still younger male, 115™" long and 60™™ broad, likewise from the Davis Strait at 289 fathoms depth, has no distinct point of the snout and no sinuation of the margin of the disk. The spinulation is essentially the same as in the first described younger male, with the difference that there are a few more supraorbital and scapular spines (a group of three on each side of the median line) and that on the tail only the median series is of a superior size. The dorsal surface is handsomely painted with larger or smaller round spots or belts (on the tail) which partially also are apparent on the thinner portion of the pectorals and ventrals. 6 THE FISHES OF THE « EXPEDITIONS. “I Africa, from the Azores and from the Canarian and Capoverdian islands and from depths between 405 og 3200 Metres. Also the prince of Monaco obtained it at the Azores in great numbers, in several draughts of the «weel», partly in the company of S%menchelys parasiticus, relatively 251 and 328 specimens. Compare: Collett’s «Résultats des campagnes scientifiques», «Poissons» p. 154. The S. pinnatus is figured by Giinther («Report on deep-sea fishes» pl. 62, fig. A) and by Vaillant («Expéditions scientifiques» p. 88, pl. 6, fig. 2). Other species of the same genus are figured and described: S. bathybius Gthr. (south of Japan, in the northern part of the Pacific and between Cape and Kerguelen, Report on deep-sea fishes» p. 254, pl. 62, fig. B), at 1375—2050 fathoms, perhaps identical with /7s¢zo- branchus infernalis Gill. (Proc. Un. St. Nat. Mus. VI, 1884, p. 255), The Atlantic: 38° 30' 30” Lat. North, 69° 08' 25" Long. West, depth 1731 fathoms. Compare also the «Oceanic Ichthyology» p. 145, fig. 165. The authors of this work take the genera Synaphobranchus and Fistiobranchus as different, partly also the species of A. bathybius and H. infernalis, and it would therefore be the most correct thing to retain the later name for the northatlantic type. Further: .S. érevtdorsalis Gthr. (lc. p. 255, pl. 63, fig. C) from North of New Guinea and South of Japan (345-1070 fathoms). «Ingolf» captured 2 specimens of a Synxaphobranchus (or, according to Goode and Bean, of a FHistiobranchus), 16 and 181/, inch. long, at the stations 36 and 37 on 61°50’ Lat. North, 56° 21’ Long. West and on 60°17' Lat. North, 54°05’ Long. W., depth 1435 and 1715 fathoms where the bottom was a grayish or light chocolate-coloured mud and the bottom-temperature 1°.5 or 1°.4C. It will be sufficient to state of those //istiobranchi of the «Ingolf>, that the small pectorals (of the length of the snout) the position of the anus and the fact that the dorsal fin reaches almost to the head, make it evident that they do not belong to Syxaphobranchus pinnatus, but either to 77. dathybius or to Gill’s H. infer- nalis, if these are not synonyms. The geografical distribution of the same species will at the same time be elucidated as far as it is known at present. Nemichthys (Serrivomer) Beanii Gill & Ryder. Of this species «Ingolf» captured on the Stations 12 and 20, at 64°38’ Lat. North, 32°37’ Long. West, and on 58° 20’ Lat. North, 40° 48’ Long. W., in the Denmark Strait and S.S. E. of Cape Farewell, at a depth of 1040 and 1695 fathoms, on a bottom of soft mud with pebbles and a bottom-temperature of o°.3 and 1°.5 C. two not fully well preserved specimens of the said deep-sea-eel-genus. A third some- what better was obtained at Station 45: 61°32’ Lat. N. and 9°43’ Long. W., West of the Faroe Islands on a depth of 643 fathoms, light gray muddy bottom with Glodigerina-shells and a bottom-temperature of 4°.17 C. It is a rather large specimen, 26 inches long; it is noted in the zoological Journal of the expedition in the following manner: «lower side of the head quite black, the sides of the trunk and back bronzeously gilt with numerous fine black points». Goode and Bean have in the «Oceanic Ichthyology» given a figure (fig. 175) of Sevrivomer Beant Gill & Ryder which agrees well with the 3 specimens at hand. The shape is much elongated, the length of the head from the point of the beak to the branchial fissure being contained 6—7 times in the total length, further on somewhat compressed and tapering to a long pointed tail, whose length 8 THE FISHES OF THE «INGOLF» EXPEDITIONS. reckoned from the anus is three fourths of the total length. The jaws are moderately elongated, the length of the upper jaw measured from the anterior margin of the eye is contained twice and a half in the whole length of the head. The mouth reaches backwards under the eyes, which are not absolutely small. The branchial openings are very wide, obliquely placed slits in the median ventral line, almost continuous. The jaws are armed with fine teeth, and the vomer wears a long series of densely placed pointed teeth. The very small pectorals are placed at the upper end of the branchial slit. The dorsal fin is represented by a series of very delicate and short rays beginning somewhat behind the anus, also the rays of the anal fin are very feeble, but perhaps somewhat longer. The soft blue-black skin is more or less lacerated in all the 3 specimens but partially preserved. The measures are the following: Mio tall@ile rica imiye ase ts etaee geo re Se cderre gegen eae ees eam a C8025 Onn room The length of the head to the branchial slit......... I0Oo- 93- £85- The length of the beak to the corners of the mouth ... 42- 37- 35- Trunk and head from the point of the snout to the anus 170- 135- 123 - Wencthivot Eiemtatl irom the: anmusey-tssewe- ee ake ee 5IO- 435- 387 - The Serrivomer Beant was known hitherto from a single specimen caught by the «Albatross at 41° 40’ 30" Lat. North, 65° 28’ 30” Long. W. and at 855 fathoms depth. It is described by Gill and Ryder in 1883 (Proc. U.S. Nat. Mus. VI, p. 260) together with a related type Sfzzvomer Gooder, also taken by the «Albatross» in the northern Atlantic likewise in a single specimen. Both the generic names are derived from the armature of the vomer with large teeth. Goode and Bean have in the «Oceanic Ichthyology» p.155 distinguished them as a separate group of nemichthyid murzenoids: Spinivomeridae, to which is further referred the Nemzchthys (Serripes) Richardi Vaill., captured by the «Talisman» at the Azores on 2995 fathoms and originally considered by Vaillant («Exp. scientifiques Travailleur et Talisman», p. 93, pl. VII, fig. 1—ra) as identic with Gtinthers: Nemichthys tnfans (Chall. Rep. vol. XXII, p. 264, pl. 63), but in the «Appendice» (p. 385) to the said work established as a separate species. Alepocephalus Agassizii Goode et Bean. Besides the 4. vostratus already known to Risso from the Mediterranean and from adjoining parts of the Atlantic as far as the Azores, the Canarian and Capoverdian islands — for which species besides the older figures by Risso and Valenciennes I may refer to Vaillants «Expéditions scientifiques» (pl. XI and XII) and to «Oceanic Ichthyology» (p. 36, fig. 41) — some other atlantic species have been described especially by American ichthyologists: A. Agassiz G.B., A. productus Gill, A. Lairdii G. B. Conocara Mc. Donaldi G. B. and A. (C.) macropterus Vaill., for which species I may refer to «Oceanic Ichthyology» p. 37—39, fig. 45, 46, 47, 48 og 43. A further addition is A. Grardi (Koehler: «Résultats scientifiques de la campagne du «Caudan»», Annales de l'Université de Lyon fase. III, p. 513, pl. XX VI, fig. 1) at a depth of 800—-1410 metres, Bay of Biscay. On the second cruise of the «Ingolf» was obtained an Alefocephalus, 201/, inch long (530), no doubt an A. Agassiz, at THE FISHES OF THE « EXPEDITIONS. 9 Station 83: 62° 25) Lat. N., 28° 30’ Long. W., at a depth of 912 fathoms, S. W. of Iceland, with a bottom- temperature of 3°.5 C. The height of the body is contained somewhat more than 5 times (1: 5.3) in the total length, reckoned to a line between the points of the caudal fin; the length of the head (164™™) is one third of the total length (to the cleft of the caudal fin); the diameter of the eye equals the distance from the eye to the point of the snout, not one fourth of the length of the head; the upper jaw terminates in a line with the posterior border of the pupil; the breadth of the somewhat hollow front is somewhat smaller than the ocular diameter or the snout. On the southern and eastern hemisphere Adlefocephalus is partly represented by Sathytroctes, which should perhaps be united with AJ/efocephalus. Of the 10 species enumerated in «Oceanic Ichthyology» 7 are Atlantic. Scopelini. Species of Scopelus are caught at 8 «stations», but they have almost all suffered so much from their being taken in dredges or the trawls, that the light-spots are only visible in part. Some specimens I have identified as .S. elongatus; the others belong to the less elongate species. The following list therefore tells, that in the zone traversed by the «Ingolf» between 61° and 65° Lat. North are to be found the species of Scofelws enumerated at the noted depths, on the bottom, if they are not captured during the hawling up of the implements used; but experience will also show that it is not through bottom fishery, that one may procure a good material of these animals, equalling that furnished by the surface. I refer the reader to my «Bidrag til nordisk Ichthyographi VIII. Nogle nordiske Laxesild (Scopelini)» in the «Videnskabelige Meddelelser fra den naturhistoriske Forening 1 Kjobenhayn», 1881, and to «Spolia Atlantica, Scopelini Musei Zoologici ete.» (K. D. Vid. Selsk. Skrifter 6. Rekke, VII, 6). Stat. Lat.N. Lgtd. W. Fathoms 12: 64° 38’ 32°37' xo4o (Denmark Strait, W. of Iceland) Sc. elongatus Risso and Sc. glacialis Rhdt. 17: 62°49) 20555 745 (S: W. of Iceland) Scop. arctzcus Ltk. 25: 63°30' 54°25 582 (W. of Godthaab) Scop. arcticus Ltk. 27: 64°54’ 55°10 393 (S. W. of Sukkertoppen) Scop. glaczalis Rhdt. 35: 65°16’ 55°05’ 362 (same place) Scop. glaczalis Rhdt. 40: 62°co' 21°36' 845 (S. of Iceland) Scop. elongatus Risso. 81: 61° 44’ 27°00 485 (S. W. of Iceland) ) : - Scop. glacialis Rhdat. 141: 63°22’ 6°58’ 679 (East of Iceland) J Cyclothone (Gonostoma) microdon Gthr. For this widely diffused species I shall refer to my remarks in my «Korte Bidrag til nordisk Ichthyographi» VIII («Videnskabelige Meddelelser fra den naturhistoriske Forening» 1891, p. 216—19, article 5 on Gonostoma (Cyclothone) microdon Gthr. and to my description and figure in my «Spolia Atlantica, Scopelini Musei Zoologici ete.» (K. D. Vid. Selsk. Skr. (6) VII, 6, tab. II, fig. 4—s). At an early time (1843) we got this little Scopelid from the Baffin Bay. The «Challenger Expedition» got The Ingolf-Expedition. II. 1. 2 IO THE FISHES OF THE «INGOLF» EXPEDITIONS. it from many places in the Atlantic (both in its northern and southern parts) and in the indo-pacific sea (S. of Japan, N. of New Guinea, off Amboina etc). Other localities are cited by Vaillant (lc, Neostoma quadrioculatum), by Alcock («Ann. Mag. Nat. Hist.» 1889, p. 399, the Bengal Bay and the Andamans at 265—485 fathoms), by Collett («Campagnes scientifiques», p. 130), and by Gilbert («The ichthyol. Coll. of the U.S. F. C. St. Albatross», Report U. S. Comm. Fish. a. Fisheries for 1893, p. 402, the Bering-Sea) and in «Oceanic Ichthyology» p.1oo. The distribution of the species turns out to be almost cosmopolitic. The latter work cites besides the C. microdon (lusca G. & B.) C. bathyphitla Vaill. C. elongata Gthr. (stigmaticus Gill.), C. gracilis Gthr. and C. gewadrioculatus Vaill., already mentioned as probably identical with C. mzcrodon. On the expeditions of the «Ingolf» the C. mzcrodon has several times been captured as appears in rather deep water; some of the specimens are, it is true, rather damaged. The station-list given below will at least illustrate the frequency of these small fishes in the subarctic zone of which it treats. Station Lat.N. Lgtd.W. Fath. Q: 64°18’ 27°00 295 West of Iceland. II: 64°34' 31°12’ 1300 West of Iceland. 12: 64° 38’ 32°37’ 1040 West of Iceland (numerous specimens). 17: 62° 40' 26°55) 745 Southwest of Iceland. 18: 61°44’ 30°29) 1135 Entrance of Denmark Strait. 21: 58°or' 44°45’ 1330 South of Greenland. 25: 63°30' 54°25’ 582 Southwest of Godthaab. 36: 61°50’ 56°21’ 1435 Southwest of Sukkertoppen. 40: 62°00 21°36’ 845 South of Iceland. 67: 61°30’ 22°30, 975 Southwest of Iceland. 76: 60°50’ 26°50’ 806 Southwest of Iceland. 81: 61° 44’ 27°00 ©6485 Entrance of Denmark Strait. 83: 62°25’ 28°30' g12 Somewhat more to the North. 84: 62°58’ 25°24’ 633 Denmark Strait. QI: 64°44’ 31°00' 1236 Likewise. 95: 65°14' 30°39' 752 Likewise. 96: 65°24’ 29°00 735 Likewise. The depth thus varied, after the trawling journal, from 295 to 1435 fathoms. The bottom- temperatures noted varied from o°.3 to 6°.1C. The «Ingolf» expeditions never got this species north of the ridges between Greenland and Iceland, and between Iceland and the Faroe-Islands. On most of the enumerated stations there was fished with vertical nets too, reaching to a depth of 100-~200 fath. withouth any Cyclothone being caught, although small fishes and young ones were taken. Cyclothone (?) megalops n. sp. ad int. (Table 4, fig. 6). Together with a great number of Cyclothone microdon captured at Station 12 — 64°38! Lat. N., 32° 37’ Long. West, 1o4o fathoms — there occurred a single specimen of a length of 7o™™, habitually THE FISHES OF THE 143™™) is about 1 + 21/,42"/, In colour they are light with more or less distinct traces of the juvenile dress. L. gracilis was known from a small specimen (43™™) from the Christiania Fjord («Nordhavs Expeditionen» p. 106) and is later found again in Leso Rende and in the Skager Rack in adult specimens. I suppose that Prof. Collett will give a full account of the species in its more developed condition as it is now known. L. pallidus Coll. («Nordhavs-Expeditionen» p. 110, pl. III, fig. 26,27; Liutken: «Kara Havets Fiske» p. 134, pl. 17, fig. 1—3.) Of this species there are from the «Ingolf»-Expedition: Station Lat.N. Long. W. Fathoms Temp. at the bottom TOL (66> 22) 127105! 537 +o0°.7C. | TOA O02 230 75 215) 957 + 1a C. East of Iceland. OS. ORS Bl eeu 762 + o.8C. | T1O)-2 Os O50 Oui20: 371 +o0°4C. South of Jan Mayen. se Ges iat ion “ef iZe penn eae North of Iceland. 1e{aVR (ey/ ane) ac 293 +o.5 C. J ietoje (oeheieier | eustop 471 + 0°.6C. ‘ \ North of the Faroe Islands. TAT: (622221) 16758) 679 pr 6 Crs | Hitherto known from the northern coast of Spitsbergen, 260—458 fathoms (Collett) and from the Kara sea (Liitken). The specimens from the «Ingolf» expedition have a size reaching to 245™™. The larger THE FISHES OF THE «INGOLF» EXPEDITIONS. 23 specimens are scaled on the belly and uniformly light brown without marks of transverse bands or design on the fins, the smaller have bands on the fins and partly on the body, but want the scales on the belly. Note. It will perhaps be useful to resume how matters stand at present with the synonymy of the species of Zycodes named here. ZL. reticulatus is founded by the oider Reinhardt (,Forste Bidrag til Grenlands ichthyo- logiske Fauna” p. 167, t. VI) on specimens from Greenland. Collett (1. c. p.84) refers to the same species the following descriptions: Z. polaris Ross. (Spitsbergen), Z. polaris Mimgr. (Ofvers. Vet. Akad. Férh. 1864, p. 516) likewise from Spitsbergen, Z. perspicildum Kr. (from Greenland) and Z. gracilis Sars (from Christianiafjord). In his great work ,Skandinaviens Fiskar” F. Smitt draws the limits of this species still wider, embracing under it not only the type: Reinhardt’s Z. reticudatus and Giinther’s of the same name (,Challenger” p.77, pl. XII; which after my opinion as stated above is a large Z. frigzdus Coll.!) and the type described by me under the same name from the Kara Sea (,«Dijmphna” T. 17, fig. 4—5) as also the ZL. perspicillum of Kroyer (regarded also by Collett and myself as a L. reticulatus), but also Z. seminmudus Reinhardt from Greenland and Spitsbergen), by Collett (l.c. p.113, t. IV, f. 28) upheld as a proper species and further Z. Ziitkenii Coll. (1. c. p.103, t. 111, fig. 25) a name adopted by me for fishes from the Kara Sea (,Dijmphna” p. 128, T. 16, fig. 1—6); and further Beans Z. Zurneri from Alaska (Proc. Un. St. Mus. I, 463), and Z. coccimeus (1.c. IV, p. 144) and my Z. pallidus («Dijmphna” p.134, t. 17, fig. 1—3) and finally Z. mucosus Rich. (Belcher p. 362, t. 26) the type of Bleeker’s genus Zycodalepis. Of these supposed synonyma the authors of «Oceanic Ichthyology” only cite the «ZL. perspicillum Kr.”, «LZ. Rossii? Migr. and ,L. gracilis Sars” to Z. reticulatus, while they notwithstanding cite (p. 307) a «LZ. perspicillum Kr.” as a peculiar type found by the ,Albatross” on depths of 59 and 86 fathoms (45°24'30” Lat. North, 58°35'15” Long. West and on 47°29’ Lat. North, 25°18’ Long. West). It must also be noted that «Z. mucosus”, formerly only known from the description and picture by Belcher «Last of Arctic Voyages” (Northumberland Sound, afterwards found again in Cumberland Sound) is now described and figured in Oceanic Ichthyology” (p. 306, t. 78, fig. 273 and t. 81, fig. 283, a,b) after a specimen 17 inches long from Northumberland Sound. In the work cited are not mentioned the species of Bean, mentioned by Smitt (Z. Zurneri and ZL. coccineus; the one being from Alaska, the other from ,Big Diomede Island”). TI shall further add, that the later paper by H. Gilbert (,The ichthyological collections of the U.S. F. Comm. St. Albatross”, 1896), containing Report of the fishes collected in Bering Sea and the North Pacific Ocean during the summer of 1890”, describes and figures several new genera and species of the Zycodes tribe, while some other species of Gilbert are named, whose original descriptions are not known to me at present. For me and my collaborator it has been a relief in our task, that the ,Ingolfian” species were well known to us from Scandinavian ichthyological works. The Macrurus group. It is well known, that no other group of fishes has received such an accession through the deep-sea-investigations as the Macruridze («Skolests» or «Berglax» as they are termed in Scandinavia). They were known in 1872 in 10—1I species; in the report of the «Challenger expedition» their number is grown to 47, including the species fished by the Northamerican expeditions and published at that period; the French expeditions have added 9—10 species, the Indian 12. Counting the species cited in the «Oceanic Ichthyology» I arrive at the number 80, by American and other ichthyologists it is later increased to 94 or more. Through the two «Ingolf» expeditions there are collected 6 species at least. The difficulty to distinguish species, which after all are very nearly similar, is augmented by the alterations undergone with age by the individuals. My task has been relieved by the «Smith- sonian Institution» having in the most benevolent manner placed at my disposal 5 species of duplicates 24 THE FISHES OF THE «INGOLF» EXPEDITIONS. from the American fishings. But there is one difficulty, which is still hardly overcome, viz., to get the large material of c. 100 described species distributed in good genera and subgenera in a satisfying manner. Provisionally I may refer to the list of genera in «Oceanic Ichthyology», where 17 genera (or subgenera?) are recognised, to which may be added an 18, later proposed (Coelocephalus Gilbert & Cramer). Until further information I retain the name JA/acrurus as a common name for all the arctic and subarctic species here mentioned. Macrurus Fabricii Sundev. (72Jes/vis Fabr. non Gunn.). The name JZ berglax Lac. which has been substituted in later times for this species is less convenient for this form, so well known in Greenland, as one will more easily understand it as alluding to the JZ (Coryphenoides) Strom, the «Berglax» of the Norwegians. The largest Ingolfian specimen has a length of 21 inches, it has therefore not the full size of the species; the smallest is only 41/, inches. The stations and localities where they were taken, are Station Lat.N. Long. W. Fathoms Temp. of the bottom 27: 64° 54' 55°10' 393 3°8C. | saunOO= 85 WSO: 35 8 291 e2 oe 2 te all from the Davis Strait. 35: 65°16’ 55°05) 362 Be Oe: | Res Gel ia! GOR aso it gy Ce These localities are partly from the Davis Strait, West of Holsteinsborg and Sukkertoppen, partly from the entrance to the Davis Strait. What shortly can be said of the distribution of the species outside this region is, that it is known more southward, from George’s Bank, from the port of New York, were it was found floating at the surface, and from 41° 47’ Lat. North, 65° 37’ 30” Long. West at a depth of 677 fathoms, and further from the eastern part of the North Sea, the Finnish and Nor- wegian coasts. The characters which make this species recognisable are the obtuse shape of the head, the rounded snout, the large eyes whose diameter is the double or more of the breadth of the front between them and equal with or larger than the length of the snout from its points to the orbital margin, the numerous keels along the sides of the trunk and tail, the back and belly, produced by every scale having a strong denticulate keel; on large specimens there is commonly only one such keel, but the greater scales of the head have commonly more (3, 4 or 5) such keels, diverging from forwards backwardly. These larger scales form partly more prominent groups on the opercles and preopercles, partly rows especially on the median line of the snout, round the orbits, along the lower lateral margin of the head ete. A larger naked spot before the eyes gives room for the nostrils; before these there is in larger specimens a smaller naked spot on each side, close to the point of the snout. Below the inferior lateral margin bespoken the skin is naked or only covered with smaller asperities, and the same is the case with the two branches of the lower jaw. In half-grown speci- mens it is evident, that on the ordinary scales there are besides the chief keel several more or less distinctly serrated accessory keels, 1, 3 or 4 on each side of the chief keel; but the distinct and numerous larger longitudinal keels along the sides of the body are nevertheless equally characteristic THE FISHES OF THE «INGOLF» EXPEDITIONS. 25 for younger and for older specimens. In the very youngest specimens the extension of the scale- covering is more limited — on the belly to the region before the ventrals, while the belly proper is entirely without scales. The shape of the snout is here the same as in other JZacrurz, not bowlike rounded, but sharply triangular. The first dorsal fin begins immediately over the insertion of the pectorals, which again is in the vertical from the first point of the ventrals. The first longest rays of the ventrals are almost equal with those of the pectorals, but shorter than those of the first dorsal fin. The number of rays is 1+ 11 in this fin, 19 in the pectorals, 8 in the ventrals. The teeth are minute, almost hidden between the papilla of the mouth. Of the other northern species Macrurus (Coryphenoides) rupestris Gunn. (M. Stromii Rhdt., norvegicus Nilsson) (figured in «Voyage en Scandinavie», Poissons, pl. 11, in Smitt’s Scandinavian fishes, pl. XXVII, A, fig. 2, and in Collett’s «Poissons provenant des campagnes du yacht lHirondelle» (1885-——88) 1896, pl. 10, fig. 11) there is also a large number of specimens partly from the same localities, where JZ Fabricu was caught, f. inst.: Stat. 27: 64°54’ Lat.N., 55°10’ Long. W., 393 fath., bottom temp. 3°.8 C. | ; : eb fat ie Davis Strait. en dD One 255,05 362 — = RAG (Cs partly from others, f. inst. Stat. 25: 63°30’ Lat.N., 54°25’ Long. W., 582 fath., bottom temp. 3°.3 C., Davis Strait. — 41: 61°30! 17°10! 1245 -— -— 2°.0C, South of Iceland. Also two larger specimens from Stat.go: 64°45' Lat. N., 29°06’ Long. W., 568 fath., bottom temp. 4°.4C., length 485™™) By, hake, Denmark Strait. 97: 65°28 — 27°39 = 450 — = 5.5C, — 730mJ Young specimens of JZ rufestris are captured on the following localities: Stat. 25: 63°30' Lat.N., 54°25’ Long. W., 582 fath., soft blue-clayish mud, bottom temp. 3°.3 C. Davis Strait. — 27; 64°54 — 55109 — 393 — soft gray clay, bottom temp. 3°.8C. Davis Strait. — 40: 62°00° — 21°365 — 845 — dark gray mud, bottom temp. 3°.3 C. South of Iceland. 45: 61°32) — 9°43! 643 — bottom temp. 4°.17C. West of Faroe Islands. — 69: 62°40° — 22°17) — 589 — mud, bottom temp. 3°.9C. South of Iceland. — 81: 61°44 — 27° — 485 — mud, bottom temp. 6°.1C. | f Southwest of Iceland. 635162225 9=— 28°30) — 912 — mud, bottom temp. 3°.5 C. The largest specimen has a length of 28 inches, the smallest of 2'/;>6 inches. As to the geo- graphical distribution, for which the above cited work of Collett may be referred to, it may be remarked, that beyond the shores of West-Greenland and Norway (from Helgeland to Christianiafjord and Bohuslin) this «Berglax» is known from the sea between Shetland and the Faroe Islands and has several times found its way to the most northern shores of Denmark. In «Oceanic Ichthyology» p. 403 The Ingolf-Expedition. II. r. 4 26 THE FISHES OF THE «INGOLF» EXPEDITIONS. other stations are noted from the northwestern Atlantic (The specimens of «l’Hirondelle» were taken South of Newfoundland). The head, whose length is contained 5 or somewhat more than 6 times in the total length (in 1. Fabricit a little more than 4 times) is obtusely rounded, terminating in a small knob in the point of the snout, but without prominent crests or keels with larger scales. In younger specimens the crests of the head may be as it were indicated and the obtusely rounded snout may assume a little more angular figure. The oral orifice reaches to the middle of the eyes or almost to the ver- tical from their posterior margin in large specimens. The jawteeth are very delicate, placed in a single series. The scales are delicately ciliated, relatively small, but numerous, covering in a very regular manner the head, the body and the tail; the smallest are found on the snout and nearest to the eyes, and this covering reaches to the protrusile part of the jaw, there being no naked or half naked papillous surface at the lower part of the head. Only the throat and the gill-+membrane are naked. The naked spot where the nostrils are placed is not so great as in JZ Faébricit. Of the scales it may further be stated, that they are without keels, but densely covered with spinules without any strong tendency to arrange themselves in transversal rows, but are best said to be arranged in no particular order; the tendency to a serial arrangement is perhaps more distinct in younger individuals. The second dorsal fin, whose anterior rays are very insignificant, begins only at a long distance from the first, about at a line with the points of the pectorals (in younger individuals partly somewhat nearer to the first dorsal), the anal however below or close behind the last rays of the first dorsal, the anus being placed so much forwardly, that there is at most the length of an eye-diameter between the anus and the ventrals. The first ray of the ventrals is very long (?/; or 3/, of or, in younger individuals, equal to the length of the head), therefore reaching far out on the anal, whose rays are relatively strong and well developed. The eyes are great, their diameter is equal to or a little smaller than the distance between the orbita and the point of the snout, but commonly much lesser than — 2/, of — the frontal breadth. The number of rays is D’ 1-+11, P.16, V.8; the first dorsal ray is delicately serrated. The barbel is very small, the lateral line very distinct. As I have had the opportunity of comparing two half-grown specimens of Jacrauraus Bairdit Goode & Bean («Oceanic Ichthyology» p. 393, fig. 335) with JZ Strom (rupestris), I shall — without entering upon a detailed description and perhaps superfluously — observe, that this Northatlantic type is not specifically identical with JZ Stromi or founded on younger specimens of this — a suspicion that might perhaps offer itself to an ichthyologist not having this opportunity to an immediate comparison. Macrurus (Hymenocephalus) Goodei Gthr. («Oceanic Ichthyology» p. 407, fig. 340.) To this species I refer — after comparison with two specimens sent from the Museum at Washington under the names of J/acrurus asper and LHymenolaimus Goode — the first name being that, under which the species was first described by Goode and Bean, which name however had to be withdrawn, Gitinther having used it for a Japanese fish — some individuals from the following localities: THE FISHES OF THE «INGOLF» EXPEDITIONS. 27 Station Lat.N. Long. W. fathoms temper. of bottom II: 64°34’ 3rx°12' (Denmark Strait) 1300 1°.6 36: 61°50’ 56°21’ (Davis Strait) 1435 1s 37: 60°17’ 54°05’ (Davis Strait, at its mouth) 1715 1°.4 From the localities enumerated for JZ Goodez by Goode and Bean it will be seen that the species is taken so far south as «off Havanna», and that the depths noted are between 154 and 1434 fathoms. The largest specimens have a length of 325™™ and 310™™, Their «habitus» reminds somewhat of that of the Alalacocephali. The length of the head is contained 5 times or somewhat more in the total length. The diameter of the eyes is somewhat smaller than the diameter of the front and much smaller than the length of the snout. The head is completely scaled with the exception of two parties back of the anterior margin of the snout and an adjoining part of the lower side of the snout. The branchial membrane and the throat are also naked, but the belly proper is scaled like the rest of the head. The scales may be described as ciliate or lineate-ciliate, delicately nbbed with 6—g scarcely diverging or parallel, low, serrated thorny ribs; the squamification therefore makes a striated impression. The intermaxillary teeth are arranged in two rows, the greater ones in the external row; those of the lower jaw are placed in a single row. The foremost (second) dorsal fin ray, whose point in its depressed condition does not reach to the first low ray of the second dorsal, is serrate anteriorly. The first dorsal has its ordinary place over the ventrals, a little behind the pectorals. The first elongate ray of the pectorals may reach to the anus; the pectorals are not relatively long. The number of the rays are counted thus: D'1r-+-9; P.19; V.9—10. The lateral line is distinct. Macrurus ingolfi Ltk. sp. n. Of this apparently hitherto undescribed species 2 specimens (270™™ long) are at hand from Station Lat.N. Long. W. fathoms temp. at bottom 40: 62°00! 21° 36’ (South of Iceland) 845 Byes: and one specimen (length: 277—340™™) from each of the following stations: Station Lat.N. Long. W. fathoms temp. at bottom It: 64°34' 31°12’ (Denmark Strait) 1300 115} (C; 18: 61°44’ 30°29’ (Southwest of Iceland) 1135 ae.01C: 64: 62°06’ 19°00' (South of Iceland) 1041 Bea. 83: 62° 25' 28°30’ (Southwest of Iceland) 912 Bes, Ss This species has a considerable likeness with the proceeding species, from which it may be easily distinguished among other things through the larger eyes, the distinct knobs of the snout and a higher first dorsal. The head is contained about 5 times in the total length. The superior or frontal surface of the snout is separated from the inferior or more forwardly directed part by a well developed crest or edge, terminating in 3 spinose osseous tubercles, one directly in the middle and one on each side, close before the naked spot, where the nostrils have their place, and continued both above and below the ri 28 THE FISHES Of THE «INGOLG» EXPEDITIONS. orbita. The broadly triangular snout is prolonged fairly over and before the mouth, which is relatively little, the corners of the mouth falling in a line with the anterior margin or the middle of the orbits. The eyes are large, their diameter surpassing the breadth of the front between the eyes. The teeth form a fine card in both jaws. The head is scaled with the exception of the gill membrane, the isthmus and its foremost superior margin, and almost the whole lower surface. The naked part of the snout is handsomely embroidered with rows of slime glands. The first dorsal counting 11-+ 9 rays is singularly high and its longest (second) ray is serrate and as long as the head. The second dorsal begins much forward, its foremost rudimentary rays may be followed until not far from the posterior margin of the first dorsal fin. The pectorals contain 20 rays, and the ventrals, whose external ray tapers to a fine thread and reaches a long stretch beyond the anus have 8 rays. It may also be remarked, that the tail as in other Macrurians is really pointed behind, but in several specimens has lost a shorter or longer part; but the wound has healed, and on the thus truncated point of the tail is developed a distinct caudal fin, a phenomenon which is also observed in some specimens of the proceeding species. The scales show distinct rows of thorns, not however so much projecting as in AL, Goode. Macrurus ingolfi n. sp. differt a IZ Goodet preecipue oculis majoribus, tuberculis rostralibus magis distinctis et pinna dorsali altiore, longitudinem capitis equante, pinna dorsali secunda usque ad pinnam dorsalem fere continuata. Macrurus (Chalinura) simulus Goode et Bean. («Oceanic Ichthyology» p. 412, fig. 345.) Of this species the «Ingolf» expedition obtained 4 smaller specimens from Stat. 18: 61°44’ Lat.N., 30°29’ Long. W. (Entrance of Denmark Strait), 1135 fath., temp. at bottom 3°.0 C. Further 2 specimens (280 og 160™™) from Stat. 83: 62°25’ Lat.N., 28°30’ Long. W. (Denmark Strait), 912 fathoms, temp. at bottom 3°.5 C. and 2 specimens (280 and 330™") from Stat. gt: 64° 44’ Lat. N., 31° Long. W. (Denmark Strait, 1236 fathoms, temp. at bottom 3°.1 C. For the determination of this species I have made use of a specimen sent from the Museum at Washington. The head, whose length to the branchial cleft is contained almost 5 to fully 5 times in the total length, is thick with a rather long and obtusely rounded snout. The eyes are small, their diameter being only about a half frontal diameter. The mouth is very large and almost terminal, the snout being almost regularly truncate and only little protruding; the upper jaw wearing a card of teeth whose external teeth are exceedingly the largest, the lower jaw wearing a single row. The first dorsal numbers 11 rays, of which the first is very short and the second long and serrate as in most other Macrurids; the second dorsal begins at some distance from the first, the point of the first dorsal in its depressed state reaching to or a little beyond the beginning of the second. The first ray of the ventrals is produced in filiform shape and reaches not a little beyond the anus. The scales are rather small, but distinctly pluricarinate, specially in the head, which else shows some soft and THE FISHES OF THE «INGOLF» EXPEDITIONS. 29 naked parts: the preopercle, the margin of the jaws, parts of the snout and the whole lower surface of the head. As to other localities the reader is referred to «Oceanic Ichthyology» p. 412. Trachyrhynchus Murrayi Gthr. (Deep-Sea Fishes, Challenger Report p. 153, pl. 41, fig. A.) Of this species a young one (120™™) was obtained at station 73 (62° 58’ Lat. N., 23° 28’ Long. W., Southwest of Iceland at 486 fathoms, at a temperature at the bottom of 5°.5 C.). Previously it has been taken in the Faroe-Channel at a depth of 555 fathoms. Gadoids and allied Fishes. Motella (Onos) Reinhardti Kr. (Tab. IV, fig. 8). Compare the description and figure in «den norske Nordhays Expedition», Fiskene, S. 131, pl. IV, fig. 34 and «the Challenger Report» p.g7, pl. XIX, fig. B. After this Gadoid having been sent down from Greenland several times in earlier years, it was found again in the sea between Spitsbergen and Beeren-Island in the ice-cold water at a depth of 658 fathoms. Later it is found again in the Faroe-Channel at a depth of 540—640 fathoms. . Ingolf» obtained it in a few specimens on Station 116 (70°05/ Lat. North, 8°26’ Long. West, South of Jan Mayen, at 371 fathoms, brown Biloculina-mud, at a temperature at the bottom of +o0°.4C.) and at Station 140 (63° 29’ Lat. North, 6°57’ Long. West, North of the Faroe Islands, 780 fathoms, gray mud and a bottom temperature of + 0°.9 C.), also at Station 43 (West of the Faroe Islands, 61° 42' Lat. North, ro° r1’ Long. West, 645 fathoms, sandbottom (?), bottom temperature o°.o5 C.). Some young specimens were obtained at Station 2 (63° 04’ Lat. North, 9° 22’ Long. W., 262 fathoms, Southeast of Iceland, clay and gravel, temperature at the bottom 5°.3C) and on Station g1 (Denmark Strait, 64°44’ Lat. N., 31°00’ Long. W., 1236 fathoms, Globigerina mud, bottom temperature 3°.1 C). The new localities do not much extend the known geographical distribution, but seem to show, that it may occur at less considerable depths and under a less cold temperature, but also at somewhat greater depths and under low degrees of warmth, a little over or under zero. A sketch executed on the «Ingolf» gives it a light testaceous colour. Of larves (on the so termed Cowchza-stage) several were fished by the «Ingolf» of this or other arctic species, especially between the Faroe and the Shetland islands as well as east and south east of these and south of Iceland, at the surface. Of the other arctic J/ofedla-species, IZ. septentrionalis Coll. and JZ ensis Rhdt. (compare «Norske Nordhavs Expedition» p. 138, pl. IV, fig. 35—36; «Oceanic Ichthyology» p. 381, fig. 327) nothing new was ascertained through the «Ingolf» Expeditions. 30 THE FISHES OF THE «. It is stated, it must be observed, by this author in agreement with Dresel (Proceed. Un. St. Nat. Museum 1884, p. 250), that the North-atlantic THE FISHES OF THE «INGOLF» EXPEDITIONS. 33 type (G. ¢ricuspis) differs specifically from the Northpacific (G. pzstilliger). I refer the reader to the notes of Gilbert (lc p. 424). As I have also previously bespoken the relation between Phobetor (Gymnacanthus) and the species Cottus claviger and C. dicereus, 1 shall further add, that these two species now (Gilbert l. c. p. 426) are cited as species of a genus Evophrys. Cottunculus microps Coll. Cottus or Cottunculus microps is first (1875) established (Collett: «Norges Fiske, med Bemezerk- ninger om deres Udbredelse», Tilleeg til Videnskab. Selsk. Forhandl. 1874, p. 20, pl. I, fig. 3) on a very young sea-scorpion, fished by Mr. O. Sars at the depth of 200 fathoms in the vicinity of Hammers- fest. Afterwards «den norske Nordhavs-Expedition» (lc. p. 18—as, pl. I, fig. 5—6) obtained it in 3 spe- cimens, taken Northwest of Hammersfest and West of Norskoen (Spitsbergen) at depths from rg1 to 459 fathoms (size 93—175™"); the bottom sandy or grayish blue clay, the temperature at the bottom +o°1 a 3°5C. Still later it was found in the Faroe-Channel, so called, by an English expedition (Gtinther: Report, Challenger, p. 60, t. IX, fig. A) and by an American expedition still nearer to the American side, two small specimens from a depth of 260 fathoms, 39° 59’ Lat. N. and 70° 18’ Long. W. (Tarleton Bean and Brown Goode: «Report on the results of dredging», Bull. Mus. Compar. Zool. 1883, p. 212). From Greenland itself we have obtained 3 specimens (200—260™™) sent down by M. Miller, inspector of the colony Sukkertoppen, and Prof. F. Smitt states («Skandinaviens Fiskar» I, p- 159), that a male of the length of 157™™" was taken on Nordenskiéld’s expedition on the eastcoast of Greenland at 130 fathoms depth on clay bottom and at 65° 30’ Long. North. The most northern point where this sea-scorpion of the cold and deep sea is known is 80° Lat. North (Spitsbergen), the most southern on the European side is the Trondhjemsfjord (63!/,°); according to the statement of F. Smitt it is there taken in rather numerous specimens at depths from roo—2oo fathoms. After a note by T. Bean (Notice of the remarkable marine fauna occupying the outer banks of the southern coast of New England, Nr.2; American Journal of Science, October 1881, p. 296) it is taken at 7 stations at the depth of 3r0—396 fathoms on the banks off the southcoast of New England. Giinther (1c) also states, that several specimens are known from the southcoast of New England at depths from 238 to 372 fathoms. Compare also «Oceanic Ichthyology» p. 269, fig.257 and 261 a,b. This species is figured by Collett at the places cited in «Norges-Fiske» and in «den norske Nordhavs Expedition», by Giinther in «the deep-sea fishes of the Challenger» (lc), and by F. Smitt («Skandinaviens Fiskar», I, p. 158, fig. 45), further in «Oceanic Ichthyology» pl.1. As it is also described by the said authors, by Lilljeborg and by Jordan and Gilbert («Synopsis of the fishes of North America» 1882, p. 688) I may limit myself to an enumeration of the Ingolfian localities and to the addition of a few descriptive notes. The skin is densely rough everywhere on the head, body and tail, weakest on the belly, from small round asperities; at some places they are grouped together in small heaps and may be continued on the dorsal rays — more sparsely on the pectorals. The interorbital space is rather large. Behind the eyes is found an are of 4 coniform knobs; somewhat more behind, on the occiput, are two and at both sides in a line with the upper end of the branchial cleft one or two smaller knobs with some more The Ingolf-Expedition. IL r. 5 34 THE FISHES OF THE « a specimen, 150" lang, was obtained in Davis Strait (66° 49’ Lat. North, 56° 28’ Long. West, at a depth of 235 fathoms, sand and ooze bottom, bottom temp. 4°.4 C.) («Vidensk. Meddel. fra den naturh. Forening» 1891, p. 29). 5) With «Ingolf» finally a specimen was obtained, a female, 184™™, at station 83 (Denmark Strait, South west of Iceland), 62° 25’ Lat. North, 28° 30’ Long. West, depth 912 fathoms, temperature at the bottom 3°.5 C. This Cottunculus is smooth without granulations etc., light gray without designs; the head is strongly provided with coniform tubercles on front, top and sides of the head, opercles ete. A specimen from the American deep-sea expeditions has been before me for comparison; young specimens are not at hand. THE FISHES OF THE «INGOLF» EXPEDITIONS. 35 Cottunculus inermis Vaill. was hitherto only known from the description and figure of Vaillant (lc. p. 365, pl. 28, fig.2) and was misjudged by the authors of «Oceanic Ichthyology» (p. 525) who identified it with C. mzcrops. The French expeditions obtained 3 specimens (86™™ in length) from the localities already cited (the coast of Sudan and «Banc d’Arguin») at a depth of 930 and 1495 metres. More northerly it was hitherto unknown. <«Ingolf» obtained 4 specimens: Stat. Lat.N. Long. W. 102: 66°23’ 10°26' (East of Cape Langanees), 750 fath., brown mud, bottom temp. -+ 0°.9 C., size 58™™. 104: 66°23 7°25) (East of the northeastpoint of Iceland), 957 fathoms, light graybrown mud, bottom temperature + 1°.1 C, female, size 94™™. 125: 68°08’ 16°02’ (North of Iceland), 729 fathoms, bottom brown mud, temp. + 0°.8 C., a female, 150™", and a younger specimen, 50™™, Uniformly grayish without any design, almost quite naked and smooth, only a very little rough to the sense of feeling. No tubercles either on the crown of the head, the occiput or opercles. The distance between the small eyes is very large, more than thrice a diameter of the eye. Palatal teeth not observed. Could therefore on so termed technical reasons be cut off as a peculiar generic type, but I prefer with Vaillant to keep it in the genus Cof¢twncalus. It may still be added that in younger specimens the granulation is very distinct and dense, though not so dense and complete as in C. microps. A note about the northern Colti. Cottus scorpius L. That the Greenland sea-scorpion (C. g7én/andicus) is not specifically different from the common North-european species is well known now-a-days, though it may still happen that now and then a ,Cottus erénlandicus” is mentioned from European (Norwegian, Scottish, English) localities, most likely in cases where uncommon large specimens of C. scorpfius have occurred. The ,Ingolf” expedition has brought home specimens of this species from stat. 33 (67°57' Lat. North, 55°30’ Long. West, S.W. of Egedesminde, depth 35 fathoms, gray sand bottom, bottom temperature o°.8 C.). From the east coast of Greenland (Jameson’s Land, ,Hekla’s harbour” etc., from the shore to the depth of some [11] fathoms) the expedition of Ryder brought home some specimens, partly young ones, partly rather adult individuals. It is added, that in ,.Hekla’s harbour” it was found the whole year round. C. scorpius is otherwise known from almost the whole west coast of Greenland to Umanak and Upernivik, it is noted from Boothia, Port Leopold, the Wellington channel and the Northumberland sound, on the eastern side of America to Cape Hatteras, at Iceland, Spitsbergen, the White Sea and Novaja-Semlia, at the Faroe-Islands and at the British coasts to the mouth of the ,Channel” and at the Scandinavian shores, in the Baltic to Uleaborg. If the «Jaok” of the Kamtschadales (C. jaoc) is correctly referred by Malmgrén to our common sea-scorpion, it meets in the northern part of the Pacific with several other species of Coftws, for which I must refer to the literature, as it would be too prolix to make a detailed account of it at this place. C. scorpioides Fabr. (on which I must refer to my elucidations in «Vidensk. Meddel. Naturh. Forening” 1576) was not found by the «Ingolf” expedition, nor are there from other sources turned up any new informations on it. That Dr. F. Smitt (1. c.) regards it as a variety of C. scorpius does, after what I have set forth formerly, of course not agree with my conception. C. Lilljeborgii has not been found on any of our arctic expeditions. On the other hand it is named (Proc. Royal Soc. Edinburgh, Vol. XV, p. 207, tab. IV, fig. B) between the deep-sea fishes obtained on the north coast of Scottland by Murray. Cottus quadricornis 1. has not been found neither by the «Ingolf” expedition. On the other hand the expe- dition of Ryder to East-Greenland obtained a specimen at the depth of 3—6 fathoms at ,Hekla’s harbour” (,Med- delelser om Gronland®, XIX, Hvirveldyr by E. Bay p.52). Otherwise it is well known that it has been found at 5S 26 THE FISHES OF THF «INGOLF» EXPEDITIONS. Mellville island and near the «Copper mine” (67° 12! Lat. North) in the Gulf of Bothnia and in the adjoining part of the Baltic, in the Swedish and Russian lakes, in the White Sea and at Novaja-Semlia. Cfr. my former communication the on the northern Cottoids in ,Vidensk. Meddel. Naturh. Forening” 1876. Further information on its distribution at the east coast of Greenland may probably be awaited through a future Eastgreenland expedition. Icelus hamatus Kr. The places where this little arctic Co¢foid was obtained at the «Ingolf» expedition were: Station Lat.N. Long. W. fathoms bottom temp. ZI: 66°35) 55°54’ off Holsteinsborg 88 HE 33: 67°57’ 55°30' S.W. of Egedesminde 35 gray sand Ors C. 34: 67°17’ 54°17’ off Holsteinsborg 55 Opole 127: 66°33’ 20°05’ North of Iceland 44 sand bottom 5°.6C. Other informations on its distribution and occurrence will be found in the report of the «Dijmphna» expedition and in «the Norwegian North-Sea expedition», in «Oceanic Ichthyology» ete. In the last cited work and in Gilbert’s report on the fish-collections made in the northern part of the Pacific (at Alaska, Unalaska etc.) it is named /celus dicornis (Reinhardt), the author probably following the hypothetical suggestion by Collett, that an /celws may have been the foundation of Reinhardt’s Cottus bicornis, which can not be determined with certainty, the original specimen not existing. To change a denomination of scientific certitude with another of dubious applicability can only involve uncertainty and want of clearness. Gilbert also infers the possibility that the Pacific type might differ specifically from the Atlantic North-Sea type. There are further named by North- american ichthyologists quite a series of Northpacific species: /celus spiniger, canaliculatus, vicinalts, euryops and scutiger, Icelinus boreals, tenuis, filamentosus, fimbriatus and oculatus, as well as some species of new genera unknown to me. The relation between those «representative» species from the same region of both oceans is, it is true, of great interest, but requires for its solution a relatively great material placed in one single hand. Artediellus (Centridermichthys) uncinatus (Rhdt.). (Tab. IV, fig. 9.) Of this small Cottoid many specimens were captured at station 33 (67°57’ Lat. North, 55° 30’ Long. West, at a depth of 35 fathoms, on gray sand, at a temperature at the bottom of 0°.8 C), some at station 29 (65° 34’ Lat. North, 54° 31’ Long. West, depth 68 fathoms, on sandy bottom, temperature at the bottom o°.2 C.) and a single specimen at station 31 (66° 35) Lat. North, 55° 54’ Long. West, at 88 fathoms, temperature of bottom 1°.6C.), all on localities off the west coast of Greenland, not farther south than Sukkertoppen, not farther north than Egedesminde. On its occurrence elsewhere may be referred to my former «Meddelelser om nordiske Ulkefiske» («Vidensk. Medd. Naturh. Forening» 1876, Novaja Semlia, coast of Norway down to 59°) and to «Bidrag til Kundskab om Kara Havets Fiske» («Dijmphna-Togtet» 1886, p. 124, west coast of Novaja Semlia); to Collett: («den norske Nordhavs- Expedition», Fiskene, p. 29, between North Cape and Spitsbergen) and his «Meddelelser om Norges Fiske» («Nyt Magasin for Naturvidensk.» Bd. 29, 1884); also Hubrecht («Niederl. Archiv f. Zoologie, THE FISHES OF THE INGOLF-EXPEDITIONS. 37 Suppl. Bd., 1882, east of Beeren Island) and Bay (l.c, East Greenland, 127 fathoms, 74° 17’ Lat. North, 15° 20’ Long. West). In «Oceanic Ichthyology» (p. 267) numerous localities from various northatlantic places are cited. As a synonym Coftus dicornis Rhdt. is also cited here; concerning this the reader is referred to what is remarked above on /celus hamatats. Triglops Pingelii (Rhdt). was found by «» EXPEDITIONS. 39 Contents. The Ichthyological Results of the Expeditions of the ,,[ngolf’’. Page Page eahsroVelkocorsy INSeBMIKS Soo pooon one Oooo aon aon ihe Tgycodes\ perspicillum Kars) ee = Plate IV, fig. 5. 22. Sizes (Rar a)e Was mns INNA. os bo ee cGon on oe ee 2. Wy@orlss: ares Grins cao oeaaebhoanonoagongo 22. Rajauuyperboreay Colletten cn. chen newer cai lieaceepie tis Ze Wy codesspallidiiss Colle eesti ce cncnlatncn- in iain mn al -mon ear 22. Raja ineolianam tke nesp.. <1. 25. sone EMOTE wale It Bs || ANS Wea fac co oo pas no De coe Reon o Geos 2a% Raja Fyllze Ltk. (ornata Garm.?)..... Plate Il, fig. 2. 4. Macrurus Fabricii Sundey. (rupestris Fabr. non Gunn.). 24. Deep-sea-Eels: Synaphobranchus and Nemichthys [Serri- Macrurus (Coryphzenoides) rupestris Gunn. (M. Stromii VOUT] conn esboo sobs ton SOO oem OOO ooo Oe 6. UIeGhes, Worn ws Woe) 5 os eos obec ceoscans Ap Synaphobranchus infermalis (Gilly 5. oe We Macrurus (Hymenocephalus) Goodei Gthr.......... 26. Nemichthys (Serrivomer) Beanii Gill & Ryder....... We Macrunis imc olii Wetkcrspiitis icitcnnsicienolias on aileieleneltnen= 27. Alepocephalus Agassizii Goode et Bean ............ 8. Macrurus (Chalinura) simulus Goode et Bean....... 28. QeQwahit op ocoscoovbpomecuons dpegoecouas. Q- rach yrhyn Chis. Mirra ie Gti escnoita) leiediel eli teneyal oie) ee 29. Cyclothone (Gonostoma) microdon Gthr. .......... Qu |eGadoids) andallredipfishtes) yraeuel | cucuey eel uote) eset 29. Cyclothone (?) megalops n. sp. ad int. . . Plate IV, fig. 6. ro. Motella (Onos) Reinhardti Kr. ...... Plate IV, fig. 8. 29. sRirepNOtacamtisiuan tuect cae sho sete tee Sane Se se Tae Haloporphyrus eques Gthr. ........ Plate IV, fig. 7. 30. Polyacanthonotus (Macdonaldia) rostratus Coll....... 12. Antimoral viola (Goodeeb Beat says) -i-leienelelci=tslct-)ais 30. Cyclopteridaesand@ijiparididaey. 95% Giegeie el ce > 14. Rhodichthys regina Coll .......... Plate III, fig. 4. 31 Cyclopterus (Eumicrotremus) spinosus (Fabr.) ....... hls || (Goel (GINA) woohoo bso obopoksooe oo eae oas 32) Liparis Reinhardti and L. micropus Gthr. Plate III, fig. 3. 14. Sebastes marinus L. (norvegicus Ascan.) .......... 32 (L. (Careproctus) gelatinosus Pall.) .............. 14, Phobetor ventralis C. V. (tricuspis Rhdt.).......... BQ Paralipanis; bathybit (Coll) 5 2-3 ee ee = 17. Cottunculusemiccrops: Colla -asie iene ioncnen-neioieirclt tile Bet iilsiaormlel Oprcivin 55 o56n0uieo on soem soo hoon 18. Cottinenlus tornvis Good ewe y-mon-i-il-t iets) oita isles 34. (Cyaraeihis Vaiss aoe ose Simo o coo mea coos eco 18. Cottunculustinernis mVanllie www -ucu-) mt : os “ ¥ i w Oe Pte? | Aa, ’ ane oak “ ns i oF : . . ite ss eon eae Atane a Ae ‘ / Pe ae ent Er oh »y q > rate a t +e Ati ie es ates '« ie es p et at eras “ fi, age re ¥ ee ae, ne de e: adh ill i iia ae ae Ste ie ol py : : Px. va a me f te Sie ve ae ‘ en 7 ' . any ye Oe ide A teres: : Me pate Ingolf Expeditionen, svg she : F 4p 7 te a oe C ee ~ a : ma at : ne in si ue ia dee re Ingolf Expedilionen, 11, ¢ Lutken, Pisces Tabl = Sew ae a oe eu 762 —o°8 132 63° 00° 17° 04! 747 4°6 81 61° 44’ =| 27° 00’ 485 6°! 106 65° 34° 8° 54° 447 | —o°6 133 63° 14’ 11° 24’ 230 BoD 82 Grsias) 27°28) 824 4° 65° 29° 8° 40’ 466 134 62° 34’ 10° 26° 299 4° 83 620705 ||| 28°%20; gi2 3°5 107 65° 33. | 10° 28 492 | —0°3 135 62° 48’ 9° 48’ 270 0°4 62° 36’ | 26° o1’ 472 108 65° 30° 12° 00’ 97 ron 136 63° or’ go ir 256 4°8 62° 36° 25-30) 401 109 65° 20° TL 38 15 137 63° 14° Soaie 297 —o°6 84 62958" | 259%2y’ 633 4°8 110 66° 44’ nn? aot 781 —o°8 138 63° 26’ 7 OIEG! 471 | —o°6 85 (Seis Weenie 170 III 67° 14’ 8° 48’ 860 | —o°9 139 63° 36° 72730" 702 | —o%6 86 65° 03'6 | 23° 47'6 76 112 678577 6° 44’ 1267 | —r°r 140 63° 29° 6° 57’ 780 | —0°9 87 65° 023; | 23° 56’2 110 113 69° 31 7° 06 1309 | —I°o I4I 63° 22’ 6° 58” 679 | —0%6 88 64° 58’ | 24° 25' 76 6°9 114 70° 36° Wp easy 773. | —1°0 142 63° 07° sy 587 | —o%6 89 64° 45° 27° 20' 310 8°4 115 70° 50° 8° 29/ 86 O° 143 62° 5S’ 7° 09’ 388 | —o4 go 64° 45° 29° 06’ 568 4°4 116 70° o5/ 8° 26’ 371 —o0°4 144 62° 49° owe 276 1°6 gl 64° 44’ 31° 00’ 1236 Bris 117 69° 13° Soro! 1003, —T°o OPH 1AVid HLI1 £LOOWVY 3 -19xV (0. oot ( MOP99 QUE FDP LIYIM ULPM PUP P] OP UIANQIG PRUUT ) punaspung puninr ho yoy waypeu arepasuar.i O00T* o00L ool 00L — 009 a09 ooF 00g oor (sulenpD, ystinyp ) auspyaysupp 0dr — 0 ‘9681 ¥ SG8T Uouonrpedxy glosuy of ides mde