490 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.42. 



Family LEPTOCEPHALID^. 



LEPTOCEPHALUS MARGINATUS (Valenciennes). 



Many were seen in the market. One small example has the pec- 

 toral blotch scarcely visible. 



Family MYRID^. 



MUItENICHTHYS OWSTONI Jordan and Snyder. 



In several small examples from the pools the snout is slightly more 

 pointed than in the type-specimen. The slit of the posterior nostril 

 divides the lip just anterior to the eye. 



Fanuly OPHICHTHYID^.^ 



MICRODONOPHIS POLYOPHTHALMUS (Bleeker). 



An eel from the market is identified as a specimen of this species, 

 although it does not agree in color with the example figured by 

 Bleeker.2 Color in life, brownish gray, white beneath, the snout and 

 tail yellow; body with ocelli which are gray witliin tinged with lav- 

 ender, the borders dark brown, surrounded with reddish orange which 

 fades off into the body color; ventrally the ocelli become brown spots 

 surrounded with orange; ocelli of head lemon yellow within, the mar- 

 gins brown, growing lighter on sides of head, yellow beneath; nostril 

 tubes orange, 



PISOODONOPHIS CANCRIVORUS (Richardson). 



An example measuring 600 millimeters, from the Naha market, 

 does not differ from a larger specimen from Manila. 



MYRICHTHYS RUPESTRIS, new species, 



A small eel representing a species of MyricJithys that appears to be 

 undescribed was obtained at Okinawa by Capt, Alan Owston. 



Head 15.5 in length; 5.5 in trunk; head and trunk 1.3 in tail; depth 

 in region of vent 3 in head; eye 8,5 in head; snout 5; cleft of mouth 

 3.5; length pectoral 7.5; pectoral rays 14. 



The body is very elongate and snakehke, the depth being greatest 

 m the pectoral region, decreasing immediately behind it and remaining 

 about the same (3 in head), to the posterior third of caudal where 

 the tail gradually tapers to a rather sharp point. The body is not 

 quite cylindrical, the depth being somewhat greater than the width. 

 Snout elongate, not very blunt, overhanging the lower jaw so that 

 the teeth may be seen from below. Cleft of mouth extending con- 

 siderably beyond eye. Labial nostrils large, overhanging and 



1 Family MoNOPTERiDiE. 

 Monopterus albus (Zuieuw). 

 MicrodonopMs erabo Jordan and Snyder. 



2 Atl. Ichth. Muraen., pi. 42, fig. 3. 



