256 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



litneters), and is coutaiued in the standard length about 2^ times. The greatest widtli of 

 the head (2S luiUimeters) equals the length of the middle caudal rays. The width of the 

 iuterorbital area (5 millimeters) is one-fourth of the interorbital part of the head; it is not 

 very deeply concave and has a few scales. The top of the snout, also, is fully provided with 

 scales. The length of the eye (13 millimeters) is one-half the length of the mandible. The 

 lengtli of the snout (13 millimeters) is equal to that of the eye. The maxilla extends nearly to 

 the vertical from the posterior margin of the eye; its length (23 millimeters) is contained 2J 

 times in that of the head and equals one-half the greatest height of the body. The man- 

 dible reaches beyond the vertical from the posterior margin of the eye, its length (2G milli- 

 meters) equaling that of the postorbital part of the head and twice the length of the eye. 

 Eight developed gill-rakers below the angle and 5 rudiments, 2 above the angle and 6 

 rudiments. The gill-rakers are very slightly expanded at the end and the longest is a little 

 more than 2 millimeters iu length. Pseudobrauchi* well developed. Teeth in villiform 

 bands in the jaws and on the vomer and palate. A naked space at the symi>hysis of the 

 intermaxillaries. The distance of the anterior nostril from the front of the eye equals the 

 distance from its fellow of the opposite side; it is in a tube which has an elongated narrow 

 extension behind, ending in two or three small filaments. The posterior nostril is scarcely 

 tubular and is placed close to the anterior. A pair of recurved spines on the preorbital, a 

 pair between the nostrils, four spines forming the suborbital carina, four si)iues on the 

 border of the preoperculum, the uppermost with a supplementary spine at its base. The 

 first and third spines larger than the others. A pair of compressed flat spines on the oper- 

 culum; a pair of spines at the front of the orbit above and a pair above the orbit on each 

 side posteriorly. A spine on each side of the vertex, and a pair on each side of the nape. 

 A single posterior si)ine on each side and two humeral spines. 



A very short and slender filament above the orbit in front, a large supraoccipital fila- 

 ment, which expands at the top into a semi-leaf-like tip. A small slender filament between 

 the nuchal spines, a combined filament behind the lower preorbital spine. The length of 

 the longest supraoccipital filament (1!) millimeters) is about two-thirds the length of the eye. 



The head is entirely scaly above with an expansion of the integument covering the 

 supramaxilla. 



The distance of the spinous dorsal from the tip of the snout (45 millimeters) is con- 

 tained 2| times iu the standard length, and is equal to the lengtli of the base of the spinous 

 dorsal. The length of the first spine (9 millimeters) is one-half that of the second spine, 

 (IS millimeters); the length of the third and longest spine (24 milhmeters), equal to the 

 length of the upper jaw. The length of the i>enultimate spine (12 millimeters), equal to 

 one half the length of the upper jaw. The length of the last spine (13 millimeters) is equal 

 to that of the eye. The length of the base of the soft dorsal (30 millimeters) is one- fourth of 

 the standard length. The length of the third and longest ray (20 millimeters) is one-sixth 

 of the standard length. The length of the middle caudal ray (28 millimeters) is contained 

 4J times in the standard length. The tail is nearly truncate when expanded. The anal 

 origin is under the second ray of the dorsal. The length of the anal base (10 millimeters) 

 equals two-thirds the length of the upper jaw. The length of the first spine (9 millimeters) 

 is three-fourths the length of the eye; the length of the second spine (23 millimeters) 

 o(iuals the length of the maxilla; the length of the third (19 millimeters) is about twice that 

 of the first. The length of the longest ray (23mm.) equals that of the second spine. The 

 last ray (15 millimeters) is nearly equal to the base of the fin. The vent is under the tenth 

 spine of the dorsal. The i)ectoral rays are all simple; the tenth is the longest, its length 

 (30 millimeters) equal to one fourth of the standard length. The fin reaches slightly beyond 

 the vent when extended, but does not reach to above the origin of the anal ; the ventral 

 reaches to the vent; the length of its sjune (17 millinu^ters) is about one-third the length of 

 the head. The lengtli of the second ventral ray (27 millimeters) is a little more than one- 

 half the length of the Iiead. 



Radial fornuila: D. xil, 10; A. Ill, 5; Y.i, 5; P. 17. 



General color light-orange yellow; 6 dark blotches on the upper surface, the first of 



