FISHES OF HAWAIIAN ISLANDS. 
491 
The above description is taken from Gunther’s figure, there being practically no description of 
this species in his text. The fish was not seen by us. 
Sicydium albotxniatum Gunther. Fische der Siidsee, II, 183, taf. CX, fig. D, 1877, brooks in Sandwich Islands. On a 
drawing by Garrett. 
Fig. 217 .—Sicydium albotxniatum Gunther; after Gunther. 
Genus 242. LENTIPES Gunther. 
This genus differs from Sicydium in the scaleless body and in the dentition, which consists of a 
single row of tricuspid teeth in the upper jaw and of teeth of the same size in the lower jaw. 
Sicyogaster Gill, Proc. Ac. Nat. Sci. Phila. 1860, 102 ( concolor ); name preoccupied. 
Lentipes Gunther, Cat., Ill, 96, 1862 (concolor). 
a. Tail without scales; dorsal rays 10 ' concolor, p. 491 
aa. Tail covered with small scales; dorsal rays 11 seminudus, p. 491 
407. Lentipes concolor (Gill ). 
D. vt, 10; A. 10; body subcylindrieal, naked; head oblong, depressed, with the cleft of the mouth 
horizontal; eyes of moderate size; lower lip with a series of minute teeth; both jaws with a single 
series of teeth, the anterior ones in the upper jaw tricuspid, those of the lower widely set; 2 dorsal 
tins, the anterior with 6 flexible spines; caudal quite free; ventral fins united to a short semicircular 
disk, adherent to the belly; gill-openings of moderate width. Purplish. Streams near Hilo, Hawaii; 
not seen by us. 
Sicyogaster concolor Gill, Proc. Ac. Nat. Sci. Phila. 1860, 102, fresh waters of Hilo, Hawaii. 
Lentipes concolor, Gunther, Cat., Ill, 96, 1861 (after Gill); Gunther, Rep. Shore Fish. Challenger, Zool., I, Part VI, 61, 1880 
(streams of Hawaii). 
408. Lentipes seminudus Gunther. 
D. vi, 11; A. 10; a small fish, 2 inches long, and in an indifferent state of preservation, seems to 
be a second species of this genus, having the same singular dentition as Lentipes concolor, but the tail 
is covered with small scales, the head and trunk only being naked, ft is an adult specimen, the 
ovaries being fully developed. The eyes are small, situated in the anterior half of the length of the 
head. The length of the head is one-fourth of the total, the caudal not included. The vent is some- 
what nearer the root of the caudal than to the head. Length of specimen, 2 inches. Honolulu, in 
fresh water. (Gunther. ) Not seen by us. 
Lentipes smmudMS-Gunther, Rep. Shore Fish. Challenger, Zool.. I. Part VI, 61, 1880, Honolulu, in fresh water. 
Genus 243. AWAOUS Steindachner. 
Inner edges of shoulder-girdle with 2 or more conspicuous dermal flaps; preorbital region very 
long; premaxillary and maxillary strong; lips thick; scales rather small, ctenoid, 40 to 80 in a longi- 
tudinal series; interorbital groove with a conspicuous median crest; sides of head naked; no silky rays 
on pectoral; dorsal spines 6; tongue broad, adnate to floor of mouth; otherwise essentially as in Gobius. 
