195 



155. Synapliobranchus pinnatus, (Gronov.) Gthr. 



Synaphobranchws pinnatus, Giinther, Cat. Pishes, VIII., p. 23, and Challenger Deep-Sea Fishes, p. 253, pi. lxii., 

 fig. A. (ubi synon.) : Vaillant, Exp. Sci. Travailleur et Talisman, Poiss. p. 88, pi. vi., fig. 2 : Goode and Bean, 

 Oceanic Ichthyology, p. 143, fig. 164 : Jordan and Evermann, Fishes N. Amer., p. 351. 



Length of the head not quite a seventh of the total, and equal to the distance 

 between the gill-opening and the vent ; length of the tail, therefore, considerably 

 over twice that of the rest of the body. 



Length of the snout about a third that of the head and rather over twice 

 that of the eye. 



Mouth-cleft rather over half the length of the head. Teeth in the jaws in 

 a narrow band with some enlarged ones anteriorly : a single short row of largish 

 teeth on the preniaxillary, and a single row of small teeth on the vomer. 



Scales rudimentary, forming a diagonal pattern. Lateral line distinct. 

 Cheeks and occiput scaly. 



The dorsal fin arises about a head-length and a third behind the gill-opening, 

 and therefore a short distance behind the anal : both fins are low. Pectorals half 

 as long as the head. 



Colour purple-black or brown. 



171 31R 



Arabian Sea, 459 and 824 fathoms. Registered No. — : — . 



In the Indian Museum are one of the " Challenger " duplicates, and a speci- 

 men from America. 



Anguillina, Gthr. 



CoLOCONGER, Alcock. 

 Coloconger, Alcock, Ann. Mag. Nat. Hist., Dec. 18S9, p. 456. 



The branchial openings into the pharynx are wide slits. The heart is 

 situated between the gills. The tail is a good deal shorter than the combined head 

 and trunk. The gill-openings are separate. The muscular and osseous systems 

 are well developed. The posterior nostril is superior. The tongue is free. The 

 end of the tail is surrounded by the fin. Pectoral fins are present. No 

 scales. 



Snout short. Eyes large. Cleft of the mouth wide, extending beyond the 

 middle of the eye. The teeth form a sharply prominent serrated ridge in each 

 jaw : there are none on the vomer. The vertical fins are well developed, the 

 dorsal beginning above the base of the pectoral. 



