rather fine markings of darker and dusky, also many small 
pale brownish spots, others blackish. On lower surface of 
head and pharynx mottlings very fine, as dark specks. 
Length 245 to 325 mm. One without locality and the other 
from Fiji. 
Gunther united Thyrsoidea eurosta Abbott and Lycodontis 
parvibranchialis Fowler, with this species. After a re- 
examination of the types of these two nominal forms and 
comparison with the above, we are forced to conclude all 
are the same. Gunther also includes as other synonyms, 
evidently correctly, Muraena laysana Steindachner, Gymno- 
thorax ercodes Jenkins and G. leucostictus 
Thrysoidea eurosta Abbott, type No. 984, 
was obtained in the Hawaiian Islands by Dr. J. K. Townsend. 
It shows: Head about 7; depth 123; snout 5 4/5 in head; 
gape 2; mandible 13; interorbital 7. Combined head and trunk 
about 11/10 in tail. Head width 2.4/5 its length; pharynx 
scarcely swotlen. Snout conic, slightly arched, width 1 
its length. Eye little nearer snout tip than rictus, 2 in 
snout. Mouth not closing completely. Vomer with an irregular 
or partly double series of short and rather obtuse molar-like 
teeth. Dorsal inserted about midway between front eye edge 
and gill-opening. 
Color in alcohol: rich brown, dark in shade, very fine- 
ly mottled with pale brown and about 6 rows of dusky or black- 
ish longitudinal blotches, so whole appearance is finely 
™ 
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marbled. Fins like body. Iris grayish. Inside mouth mottled 
