290 CONTRIBUTIOXS TO NORTH AMERICAN ICHTHYOLOGY IV. 



the middle of the body; anal fin small; caudal small, forked, its central 

 part scaly; pectoral ratlier narrow; adipose fin small, fringed, preseut 

 in tlie young, but usually disappearing with age. Branchiostegals 3 or 4. 

 Pseudobranchiie well developed. Air-bladder large, silvery. No i)yloric 

 ccBca ; mucous membrane of stomach papillose.' Atlantic Ocean, iu deep 

 Avaters. [/j.:xp6^, small; aroiw.^ mouth.) 



4'* 1. M. g'H'tBBsBanilieisBn Reinh. 



"This fish appears to be intermediate between Argentina and Micro- 

 stomaj having the dorsal fin inserted for the greater part in advance of 

 the ventrals, and a series of fine teeth iu the lower jaw. Teeth on the 

 vomer, none on the tongue. Adipose fin conspicuous. The height of 

 the body is one-half the length of the head and one-tenth of the total." 

 r>. 3; D. 11; A. 10; V. 10. {Giinther.) Greenland. 



(Microsfomns gronlandkus Reiuh. Vitlensk. Selsk. Naturv. Mathem. AfhaDcU. viii, 

 1841, Ixxiv; Guuther, vi, 205.) 



139.— MAILI^OTUS* Cuvier (ijoiing). 



Form and dentition of Tlialeiclithy!^. No trace of scales in the known 

 examples, which are immature. Dorsal fin well backward over ventrals, 

 its insertion nearer the tip of the caudal than the snout; adipose fin long 

 and low, its height much less than the length of its base, its base little 

 shorter than that of the dorsal; pectoral rays in increased number; 

 anal moderate. Pseudobranchiie well developed. Branchiostegals 9. 

 Pyloric coeca 4. 



473. M. villosMS (Miillcr) Cuvier {young). 



Translucent whitish; a silvery lateral stri[>e; upper regions closely 

 punctate. Eye a little shorter than snout, 4 iu head. Minute teeth in 

 both jaws; middle of tongue rough; maxillary reaching front of pupil. 

 Ventrals and pectorals about equal in length to the longest dorsal ray, 

 which is 7 times in length of body ; ventrals inserted below first ray of 

 dorsal, not reaching vent; space between dorsal and adipose fin two- 

 thirds length of head; length of adipose fin more than twice its height, 

 two-thirds base of anal. Head 4; depth 6. D. 12; A. 21; V. 8; P. IG. 

 L. 4 inches. Behring's Straits. Probably developed scales when adult. 



*As these pages are passing tbrongli the press, we learn from Dr. Bean that the 

 fish here described, collected by him iu Bcibring's Straits, is not a distinct genus and 

 ppecies as at first supposed, but the young of MaJhtus villosus. We therefore sup- 

 press the proposed generic and specific names, letting (he description remain, it being 

 too late to cancel the latter. 



