460 REVISION OF HETEEOMI—GOODE AND BEAN. vol.xvii. 



the length of the head. The lateral line arcuate in front of the dorsal 

 spines, foUowing profile of the back, and then sinking- to the median 

 line of the body. First dorsal spine in front of vertical from insertion 

 of ventral. 



The snout is compressed, pointed, much produced beyond the moder- 

 ate mouth. The cleft extends nearly to the vertical through the middle 

 of eye. The length of the snout is one and one-half times the diameter 

 of the eye. The width of the interorbital area is slightly less than the 

 diameter of the eye. The projection of the snout beyond the mouth 

 equal to the diameter of the eye, or nearly so. The snout is compres'sed, 

 not swollen. Mouth narrow, transverse, its width about one-fourth the 

 length of the head. The eye is placed some distance below the upper 

 profile and in the line of the lateral line continued to the nostrils. Gill- 

 opening wide; the membranes confluent and slightly in advance of the 

 vertical from the upper end of the gill opening; not attached to the 

 isthmus. Scales very minute, imbricated, adherent. 



All the dorsal spines are short, the anterior very short; the second 

 and first nearly over the origin of the ventrals, the fifth above the vent, 

 and the sixth slightly behind the origin of the anal. The longest about 

 one-half as long as the eye. The last (eleventh), which is followed by a 

 single ray attached to it by membrane, is over the fifteenth spine of the 

 anal. The dorsal spines are distant from each other, and behind each 

 is a narrow angular membrane. The anal begins immediately behind 

 the vent and in its middle portion is considerably elevated; the length 

 of its longest rays are about equal to that of the snout, from which 

 point it slopes rapidly to the tij) of the tail. The pectoral, placed high 

 up in the middle axis of the body, is inserted at some distance behind 

 the gill-opening and is broad and nearly oval in shape. Ventrals con- 

 fluent, some distance in advance of the vent, stout, broad, ovate in form, 

 not extending to the vent but separated from it by a distance equal to 

 half their own length. Color uniform light brown. 



Radial formula: D. xi; A. xviii + . 



This description is prepared from the types of Gill, (No. 37856, U.S. 

 E.M.) from Albatross station 2G77, N. Lat. 32° 39' W. Lon., 76° 50' 30", 

 in 478 fothoms. The types, two in number, measure 11^ and V2h inches, 

 respectively. Another specimen (No. 44240, U.S.N.M.) was obtained 

 by the Albatross from station 2G7G, in 32° 39' N. Lat., 70° 01' W. Lon., 

 at a depth of 407 fiithoTus. 



NOTACANTHUS BONAPARTII, Risso. 



Notacanthiis honaparti, Risso, Wiegin. Archiv f. Naturgescli., 1840, p. 37(i, pi. x. 



Notaeanlhus honapartii, Filippi aud Vehany, Mem. Ace. Sci. Torino, x\'iii, 1857, 

 p. 190, Notad 6. — Canestrini, Pesci d'ltalia, p. 118. — Moreau, Hi.st. Nat. 

 Poiss. France, 1881, p. 161. — Giglioli, Eleiico, 33. 



Notacanthus mediferraneus, Filippi and Verany, Mem. Ace. Sci. Torino, 2d series, 

 xviii, 1859, p. 190 (nota supra); Alcnui Pesci del Mediterraneo, 1857, p. 3.— 

 GiiNTHER, Cat. Fisli. Brit. Mas., in, p. 545.— Canestrini, Pesci d Italia, 1872, 

 p. 118.— Moreau, Hist. Nat. Poiss. France, 1881, in, p. 158 (woocl3nt).— Vail- 

 LANT, Voy. Traviiillenr and Talismaii, p. 317; p. 325, pi. xxvii. 



