1910.] 



NATURAL SCIENCES OF PHILADELPHIA. 



ii.; 



upper jaw slightly protruding. Lips broad, each fringed with 

 lather long free dermal Maps. Transverse groove of premaxillaries 

 distinct, on snout above. Teeth in one row in each jaw, simple, 

 conic, two front ones enlarged or canine-like above. Both jaws with 

 anterior teeth little enlarged, and in front of lower more so, com- 

 pressed or incisor-like, their tips rather broadly triangular. Inner 

 buccal folds broad. Tongue broad, fleshy, depressed, free around 

 edges. Nostrils rather close together, above level of eye near its 

 front edge, anterior in short fleshy tube and posterior simple pore. 

 Interorbital broad and slightly convex. Opercular spine not extend- 

 ing through integument, concealed. 



Gill-opening extends forward about opposite last § in head, Gill- 

 rakers about 6 short rudimentary points, much shorter than short 

 gill-filaments. 



Fig. 4. — Gobiexu.c mierosfnlus Fowler. 



Skin smooth. A number of pores along lower side of head, and 

 about fringes of lips. 



Dorsal inserted about midway between centre of head and caudal 

 base, tips of rays slightly protrude beyond connecting membranes. 

 Anal inserted slightly behind dorsal origin, fin similar. Cam hi I 

 rounded behind. Pectoral broad, upper rays longer, hind edge 

 rounded, with free fold in front opposite lower base, and broad flap 

 concealed, behind axilla, extends up from disk. Disk large, circular, 

 its length about \\ in head. Margins of disk, all for broad extent, 

 finely papillose. Vent before anal, though slightly behind origin 

 of dorsal. 



Color in alcohol dark chocolate-brown, except lower surface of 



