Jordan and Evermann. Fishes of North America. 2549 



nape; gill membranes somewhat united, free from isthmus; gills 4, a slit 

 behind fourth; no pseudobrauchiae ; lateral line parallel with the back to 

 beyond middle of body, then turning down suddenly, continuing to base 

 of caudal. Scales small, cycloid, not easily counted; head scaly, even to 

 the lips; vertical fins with small scales; ventral filamentous, equaling 

 length of head, all the rays except the first short ; ventral with 2 filamen- 

 tous rays, which reach to front of anal and are about 1| in head; first dor- 

 sal as high as long, beginning behind base of pectoral, its longest rays 

 about 2 in head; soft dorsal and anal low, free from the small rounded 

 caudal ; pectoral falcate, 1 in head. Color yellowish brown, bluish on 

 belly ; second dorsal and anal edged with darker brown. Type, 1 speci- 

 men, 250 mm. long. (Poey.) Deep waters of the Atlantic. 



This species has constantly (as far as is shown in our specimens) a 

 broader base to the ventral fins than Physiculus dalwigkii, and they are 

 formed of 7 rays, of which the largest may or may not reach the anal fin; 

 the fin rays vary within proportionate limits ; they are, D. 9 or 10 60 to 

 66 ; A. 60 to 70 ; there are 13 scales between the anterior dorsal and lateral 

 line; the caudal peduncle is shorter and less slender than in the Madieran 

 form, but otherwise the species are so similar as to scarcely deserve 

 specific separation. Poey obtained a specimen at Cuba, and Melliss 2 at 

 St. Helena. These differ in no respect from 5 examples, 11 to 16 inches in 

 length, found by the Challenger off Inosima in 345 fathoms. (Gunther, 

 Challenger Report, xxn, 88, pi. xvn, fig. A, 1887.) (Named for Dr. J. J. 

 Kaup, author of a work on the Apodal fishes.) 



Physiculus kaupi, POEY, Repertorio, I, 186, 1865, Matanzas. (Coll. Don Cirilo Dolzaides.) 

 ? Physiculus japonicus, HILGENDORF, Sitz. Naturf. Freunde, Berlin, 1879, 80, Japan. 



2921. PHYSICULUS RASTRELLIGER, Gilbert. 



Head 3 in length; depth 4|. D. 8 or 9-53 to 61; A. 57; scales 100 to 

 110. Length of caudal peduncle to base of median caudal rays, 2 in head. 

 Snout short and broadly rounded, 4 in head ; eye 3f ; interorbital width 

 4 to 4f ; maxillary 2J, extending to vertical from posterior margin of 

 pupil. Teeth in rather broad bands, none of them enlarged; width of 

 patch on premaxillaries | pupil; vomer and palatines toothless. Branchi- 

 ostegal membranes broadly united, joined to the isthmus anteriorly, the 

 width of the free fold more than i pupil. Gill rakers numerous, slender, 

 moderately long, the longest diameter of orbit, about 7 above angle, 17 

 to 19 below, the anterior ones short but movable. Origin of first dorsal 

 slightly in advance of base of pectorals, its distance from tip of snout 

 3f in length; base of first dorsal equaling length of snout, its longest 

 ray 2| in head; free portion of caudal peduncle equaling diameter of eye; 

 second dorsal notched, the median rays f the height of the highest 

 anterior rays, the posterior highest, equaling first dorsal and longest 

 caudal rays ; anal similar to soft dorsal, but lower ; ventrals under middle 

 of opercle, the distance between their bases little less than interorbital 

 width, equaling distance from vent to anal fin; ventrals with 7 rays, the 

 outer 2 produced, the second the longest, reaching base of seventh or 

 eighth anal ray ; pectorals with broad base, covered with lax membrane, 



