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 : 



Total length 68o mm 570™" 510™™ 



The length of the head to the branchial slit 100 - 93 - 85 - 



The length of the beak to the corners of the mouth ... 42 - 37 - 35 - 

 Trunk and head from the point of the snont to the aims 170 - 135 - 123 - 

 Length of the tail from the aims 510 - 435 - 3S7 - 



The Serrivomer Beanii 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 Spinivomer Goodei, 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 



< >ceanic Ichthyology p. 155 distinguished them as a separate group of nemichthyid murcenoids: 

 Spinivomeridae, to which is further referred the Nemichthys (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, pi. VII, fig. 1 — ia) as identic with G it 11 1 hers: Nemichthys infans 

 iChall. Rep. vol. XXII, p. 264, pi. 63), but in the Appendice (p. 385) to the said work established as a 

 separate species. 



Alepocephalus Agassizii Goode et Bean. 



Besides the . /. rostratus 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 Expeditions 

 scientifiques (pi. XI and XII) and to Oceanic Ichthyology (p. 36, fig. 41) -some other atlantic 

 species have been described especially by American ichthyologists: A. Agassizii G. B., A. productus Gill, 

 ■'■ Bairdii G. B., ira Mr. 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. Giardi 

 (Koehler: Resultats scientifiques de la campagne du Caudan , Annales de FUniversite de Lyon 

 • nl ' P-5 I 3) P 1 - XXVI, fig. t) at a depth of 800 1410 metres, Bay of Biscay. On the second cruise 

 he Ingolf was obtained an Alepocephalus, 20 1 , inch long (530 ram ), no doubt an A. Agassizii, at 



