Jordan and FA'er?nan?i. — Fishes of North America. 615 



about 4i times in distance from vent to tip of snout. Head short, com- 

 pressed, its length not quite 3^ times in distance from vent to snout. 

 Mouth large ; maxillary nearly reaching vertical from anterior margin of 

 pupil. Mouth entirely on under portion of head, suhlateral. Thirty-five 

 teeth in jjremaxillaries on each side. Distance between upper profile of 

 head and eye about ecinal to diameter of eye; and diameter of eye 

 between \ and \ length of snout, and about 8 in head. Gill cover divided 

 to below the symphy.sis of operculum (with hyomandibular), free from 

 isthmus. Scales lacking only about mouth and eyes; about 40 longi- 

 tudinal rows of small scales between ventral outline and lateral line; 

 smooth and imbricated. First dorsal spine very small, only visible as a 

 point; placed close to this is the second, which is also very short and 

 feeble; third, though also short, is thicker. The vent lies behind fifth 

 spine. First anal spine immediately behind vent, and very small, not 

 extending beyond profile ; second and third but slightly ; the spines 

 which are longest and placed farthest back still bear traces of a connect- 

 ing membrane and are probably only worn-off rays ; pectorals inserted 

 somewhat farther back from the gill covers than shown by Bloch, their 

 base less than \ the length of head ; ventral fins connected behind the 

 median line by a membrane, terminating considerably in advance of vent. 

 Total length (restored) 34 inches. Length of tail about 18i inches. 

 (Hilgendorf, in letter to Goode & Bean.) (Named for "Chemnitz" of 

 Copenhagen, probably a collector or dealer in curiosities, 1787.) 



NoiacanOms chemnitzii, Bloch, Abh. Biihrn. Gesellsch. derWlssenschaft.,l, 278, 1787, Northern Sea; 



Jordan & Gilbert, S3'nopsis, 370, 1883. 

 Notocanthiis nasHS, Bloch, Ichthyologia, xii, 113, pi. 431, 1795, " India; " GI'nther, Cat., in, 54, 



18G1; Goode & Beax, Oceanic Ichthyology, 1G4, 1895. 

 Campyloihm fabricii, Keiniiardt, Vidensk. Selsk. Afhaudl., 120, 1838, Greenland. 

 Acanlhonolus nasus, Block, Ichthyologia, xii, 114, 1797, Ed. Fr. 



913. NOTACANTHUS AXALIS, Gill. 



D. XI ; A. XVIII. Body much higher over ventrals than over pectorals, 

 and comparatively short, its height equal to \ distance from vent to tip 

 of snout and nearly equal to head ; lateral line arcuate in front of dorsal 

 spines, following profile of back and then sinking to median line of body. 

 First dorsal spine in front of ventral. Snout compressed, pointed, much 

 produced beyond mouth; the cleft extends nearly to vertical through 

 middle of eye ; length of snout \\ times diameter of eye ; width of inter- 

 orbital area slightly less than eye ; projection of snout beyond mouth 

 equal to eye or nearly so ; snout compressed, not swollen. Month nar- 

 row, transverse, its width about \ head. Eye placed some distance 

 below the upper profile and in line of lateral line continued to the nos- 

 trils. Gill opening wide, the membranes confluent and slightly in advance 

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

 Scales very minute, imbricated, adherent. Dorsal spines short, the ante- 

 rior very short ; the second and first nearly over the origin of ventrals, 

 the fifth above vent, and the sixth slightly behind origin of anal ; the 

 longest about \ as long as the eye ; the last (eleventh), which is followed 

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



