NO. 1239. APODAL FISHES OF JAPAN— JORDAN AND SNYDER. 859 



type from Nagasaki; the second, here described, about 14 inches long, 

 from the market of Tokyo, taken outside of Tokyo Bay. off Awa or 

 Misaki. (AfTrrog, slender; yvados^ jfiw.) 



Family VI. NETTAST()MTI).F>. 



Eels without pectoral tins, the tongue not free, the posterior nostril 

 before the ej^e, the gill openings small, separate, su})inferior, the vent 

 remote from the head, the tail ending in a slender tip, the vertical fins 

 moderately developed; and the jaws produced, slender and straight, 

 the upper the longer, 1)oth as well as the vomer armed with l>ands of 

 close-set slender teeth. The species are allied to the MurmneiiocidoB^ 

 but are weaker fishes, of the deep sea, with fragile bodies, the skin 

 som«^times charged with })lack pigment. 



a. Nostrils valvular on the upper surface of the head; the posterior above anterior 

 anijle of eye; tail tapering to a ])oint; snout without tleshy projeetion at ti]>. 



NettastoiiKi. 9 

 aa. Xosti'ils lateral, tlie posterior slit-like, in fiont of eye CJilopsis. 10 



9. NETTASTOMA Rafinesque. 

 Xftldslomii Rafinksqie, ('aratteri, etc., ISIO [inclanurum). 

 Characters of the genus included a))ove. {vrfrra^ duck; o'ro/<«, 

 mouth.) 



18. NETTASTOMA PARVICEPS Giinther. 



NeUastoma parviceps (jvhthkr, Ann. Mag. Nat. Hist., XX, 1887, \). 446, south of 

 Yedo (Tokyo); Rept. Challenger Fishes, 1887, p. 253, pi. lxiii, tig. A, same 

 sjiecinien. 



Head small, its length 2|^ in distance from gill-opening to vent. 

 Dorsal fin inserted in advance of gill-opening. In other respects simi- 

 lar to N^ettastoriKi iiielanuruin of the Mediterranean. (Giinther.) 

 The figure shows a row of 5 or large pores across occiput; snout 

 2| in head; head and trunk shorter than tail, which ends in a slender 

 point; 45 pores in lateral line before vent; cleft of mouth a little more 

 than half head, extending to just beyond eye; eye 4 in head. Color 

 not very dark, apparently some edging to the fins behind. 



One specimen known, taken liy the Challoujii' south of Tokvo at 

 station 232, in 845 fathoms; length, 26i inches; not seen by us. 

 {Panms^ small; eep!<, head.) 



lO. CHLOPSIS Rafinesque. 



Chlopsis Rafinesque, Indice Ittiol. Sicil., 1810, p. 58 {hicolor.) 

 Sanrenchelys I'eters, Berliner Monatsber., 1864, p. .397 {cancrivorti-Jncolor.) 



This genus sufliciently characterized above differs from JVettastama 



in the position of the nostrils, the posterior being in front of the 



eye, as usual in congroid fishes. Deep water. (j^^'^V, twig; oipig^ 



appearance.) 



