252 THE VOYAGE OF H.M.S. CHALLENGER. 



Family M u r ^ n i d .e. 



Group A n g u i 1 1 i n a, Gthr, 



Congromurasna, Kaup. 



Congromur^na guttulata, n. sp. 



Allied to Congromurasna hahenata, but witli a comparatively longer taU ; the length 

 of the body being contained once and two-thirds in that of the tail. Eye rather large, 

 two-thirds of the length of the snout. Lips somewhat swollen, a wide muciferous 

 cavity being lodged on the side of the snout ; upper jaw projecting beyond the lower. 

 Anterior nostril at the extremity of the snout, posterior in front of the middle of 

 the eye ; a wide pore on the margin of the upper lip. Cleft of the mouth extending 

 to below the middle of the eye ; teeth very small, somewhat unequal in size, forming 

 extremely narrow bands ; vomer with a few teeth anteriorly. Length of the head 

 two-thirds of that of the trunk. Dorsal fin rather low, beginning immediately behind 

 the root of the pectoral fin. Whitish, with a series of extremely minute black dots 

 above and another below the lateral line. 



A single specimen 7| inches long was obtained at Station 173, off the island of 

 Matuku, Fiji Group, at a depth of 315 fathoms. 



Simenchelys. 

 Simenchehjs, Goode and Bean, Bull. Essex Inst., vol. xi., 1879, p 27. , 



One species only is known. 



Simenchelys parasiticus. 



Simenchelys parasiticus, Goode and Bean, loc. cit. 



„ „ Jordan and Gilbert, Synops. Fish. K Anier., p. 363. 



Abundant on the oS'-shore banks, south of Newfoundland (80 to 200 fathoms) ; 

 individuals have been found burrowing in the flesh of the Halibut. 



Group Mursenesocina, Gthr. 



Nettastoma, Rafinescpe. 

 Three species are known. 



I 



