130 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



Remarks.— In the reduction of the pyloric coeca and pectoral rays 

 and the slender body this species most closely resembles the typical 

 Paraliparis. It could not, however, have given rise to the latter 

 group of species because the primitive Paraliparis had trilobed teeth. 



CAREPROCTUS LONGIFILIS Garman 



Careprodus longifilis Garman, 1892, p. 9; 1899, p. 115, pis. 27-29. 



Type.— No. 28703, M. C. Z.; Albatross Station 3374, Pacific Ocean 

 off Panama; depth 1,823 fathoms. 



Distribution. — Pacific Ocean, off Panama, Albatross Station 3374; 

 depth 1,823 fathoms. One specimen known. 



Relationships. — C. longifilis is not closely allied to any known 

 species. It is readily distinguished from the other species of the genus 

 by the extremely elongate upper and lower pectoral lobes and the 

 rudimentary condition of the middle pectoral rays. C. longifilis 

 parallels certain species of Paraliparis in the reduction in length of the 

 middle pectoral rays. 



Figure 51.— Careproctus longitius. Teeth from type 



Description of type. — The type is mutilated beyond description. 

 The following notes were taken from what remains. 



Body tapering rapidly to the caudal. Head broad and heavy as in 

 C. melanurus; interorbital flattened. Mouth broad; maxillary 

 reaching vertical from pupil. Teeth rather stout and blunt, slightly 

 recurved, in narrow bands; outer teeth smaller; the lateral lobes 

 faintly indicated. Snout broadly rounded; upper jaw slightly longer 

 than the lower. Nostril in a short tube. Eye small, black, about 

 4.7 in head. Gill slit apparently above the pectoral fin. Pores 

 apparently normal; the upper pores on the snout nearly on a line with 

 the nostrils. 



Caudal well developed, of 8 or 10 slender rays. Pectoral fin 

 divided to the base, thus differing from all other species of the 

 genus; the two lobes connected by four widely spaced rudimentary 

 rays; the upper pectoral ray extremely elongate, half the body length 

 without caudal; the lower lobe of four elongate free rays, considerably 

 longer than the head, reaching past the front of the anal and beyond 



