PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 483 



Dorsal gray. In front of the seventh dor.sal the upper third poste- 

 rior to the upper two thirds dark brown. Spots of yellow, large, 

 elongate, on or near the rays. Adipose lin wiiitish brown or yel- 

 low ; a large group of bright yellow, contiueut spots at the base. 



Pectorals sepia colored with rosy and purplish iridescence. 



Viscera. — Stomach small, siphonal, barely more than a loop in the 

 very large intestine. Alimentary canal shoit, stomach and intestine 

 when stretched out at full length extending from the diaphragm to the 

 caudal. A loop in the intestine immediately posterior to the stomach. 

 Liver with two lobes, nearly equal in length, light chestnut-brown. Gall- 

 bladder large, pendant, iiear-shaped, with long duct. Swim-bladder 

 simple, with thick nuiscular walls, strongly attached to roof of abdominal 

 cavity by numerous root-like appendages, resembling somewhat those 

 ot Pogonias. Spleen two- thirds as long as gall-bladder. 



H AULIODONTID.^ . 



41. Chauliodus Slosnii, Schueider. 



Chauliodufi Sloa)iU, ScnxEiDErv, IJloch. Syst. Iflitli. 1801, ]). 430, tab. Ixxxv (as 



C. setinotiis). 

 Chaulioduf! Sloanii, GCntiier, Cat. Fisli. Brit. Mus. v, 18(')4, p. 392. 



A single individual, No. 2G1C5, 105'^'" long, was taken from station 

 892, in 487 fathoms. The only other specimen recorded is that from 

 the stomach of acodtish from (xeorge's Banks, jjreserved in the museum 

 of the Essex Institute. 



Radial formula of No. li()105 : I). 0; A. ll'. 



SCOPELID.E. 



42. Myctophum, sp. 



A species, apparently undescribed, was obtained in several of the deep 

 hauls. It is reserved for comparison with numerous other specimens of 

 the group, as yet unelaborated, obtained by the Couiniission from the 

 deep waters of the Atlantic. 



MICEOSTOMID.E. 



Hyphalonedrus chalybeiiis, new yenus and new specios. 



Numerous s])ecimens (No. 26092) of a form closely related to Arf/entina 

 were taken, September 13, at stations 87(5 and 878, 120 and 142 fathoms. 

 They are considered to represent a new generic type.* 



HVPKALONEDRU.^, new geiins. 



A genus of Microstomati*! tishes. Body rounded, terete. Cleft of 

 mouth extending under the anterior third (at least) of the orbit. Eye 

 large. Teeth in the jaws small, sharj), on the edges of the bony lips. 

 Tongue entirely smooth. Tip of lowei' Jav*- juojecting. ^ Dorsal lin short, 

 inserted midway in space between insertions of pectorals and ventrals. 



^Etymology : I'cJaAof = uud«'r tli«,' sca-(- f iTt^pof = a dweller. 



