DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 187 



51' X. Lat., 88° IS' W. Lon., at a depth of 730 fathoms; station 2302, in I'S ' 17 30" X. Lat., 

 , s7 o 27' W. Lon., at a depth of 724 fathoms; station 2393, in 28 13' X. Lat., 87 ' I 1' 30" \Y. 

 Lon., at a depth of 635 fathoms; station 2384, in 28° 48' N. Lat, 88° 15' 30" \V. Lon.. at a 

 depth of940 fathoms; station 2117, in 15' 21' 10" X. Lat., 63°31'30" W. Lon., at a depth of 

 083 fathoms, and station 2110, in 17° 30' 10" X. Lat., tti Hi 05" W. Lon., at a depth of 966 

 fathoms. 



The Blake also secured a specimen from station xcvi, off Guadeloupe, at a depth of 

 709 fathoms. 



STKl'IIAM IBERYX GILLII, Goode and Bean, n. s. (Figure 206.) 



The type specimen is Xo. 33555, U. S. Nat. Museum, obtained from Albatross station 

 20!)'.); its Length is inches. Two additional examples from Albatross station 2102 have also 

 been used lor the purpose of this description ; one of these is 1^ inches long and the other 

 5A inches. 



The diameter of the eye equals length of snout and one-fourth length of head, which is 

 one-third of total length to caudal base. Greatest depth of body two-sevenths of total with- 

 out caudal. The upper jawis as long as the postorbital part of the head. Gill-rakers long 

 and slender, about 15 below the angle on the first arch. The ventral origin is behind the 

 end of the extended pectoral. The distance of the anal origin from end of head fully equals 

 length of head. 



About 33 rows of scales from bead to base of caudal ; 9 rows above and 7 below the 

 lateral line. 



Radial formula: B. 7; D. 11; A. 11; P. 13; V. i, 5. 



Color, in spirits, pale, the back, in front of dorsal, showing traces of rose. 



The species may readily be distinguished from 8. motive by its smaller number of dorsal 

 and anal rays and gill-rakers, the position of its ventrals, and the greater length of its 

 trunk. 



Specimens were obtained from Albatross stations 2099 (2,919 fathoms), 2102 (1,209 fath- 

 oms), and 2190 (1,230 fathoms). 



Family TRACHICHTHYID^E. 



Traehiehthyoidei, Bleekei:, Tentamen, 18.~>9, xix. (Familia 73). 



Body ovate, deep, much compressed, with small or moderate ctenoid scales. Abdo- 

 men protected by a dermal scute, forming a serrated edge. Head large, deeper than long; 

 superficial bones excavated, and with conspicuous muciferous cavities. Mouth very wide, 

 oblique. Villiforin teeth in the jaws and on the vomer. Suborbitals very broad, covering 

 the checks. Branchiostegals 8. Gill-openings wide; gill-lamimn very short. A single dorsal 

 tin, with a few anterior spinous rays. Ventrals with 6 soft rays. 



In this family are included two genera: Trachichthys, with teeth upon its vomer, oper- 

 culum with spine, and with two anal spines, and Uoplostethus, with toothless vomer, opercu- 

 lum entire, and 3 anal spines. 



TRACHICHTHYS, Shaw. 



Trachichthys, Shaw, N':it. Misc. 1708, x, pi. 378.— Cuvieh and Valenciennes, Hist. Nat. Poiss., m, 229.— 

 Lowe, Fishes of Madeira, 55. — GOnther, Cat. Fish. Brit. Mus., I, 10; Challenger Report xxii, 21. 



Body compressed, more or less deep, covered with small ctenoid and generally rough 

 scales, which are rather it regularly arranged. Abdomen protected by dermal scutes, which 

 form a serrated edge. Head very large, the superficial bones being deeply sculptured to 

 receive wide muciferous cavities which are covered by thin skin only. Mouth very wide, 

 oblique; villiforin teeth in the jaws and on the vomer and palatine bones. Eight branchi- 

 ostegals; gill-openings very wide, gill-lainime very short. Suprascapular and angle of 



