4 University of Michigan 



Gilliciifhys dctntsiis Gilbert and Scofield 



Gillichthys inirabilis Evermann and Jenkins, Proc. U. S. 

 Nat. Mus., 14, 1891, p. 162; Starks and CMorris. Piibl. Zool. 

 Univ. Cal, 3, 1907, p. 227 (in part). 



Gillichthys detrnsiis Gilbert and Scofield, Proc. U. S. Xot. 

 Mus., 20, 1897, p. 498, pi. 38; Jordan and Evermann. Bull. U. 

 S. Nat. Mus., 47, pt. 3, 1898, p. 2251. 



A series of Gillichthys, 28 to 62 mm. long to caudal, were 

 collected for the Field Museum by Edmund Heller at San 

 Filipe Bay, Lower California. The color is dark, the back 

 with traces of darker bars. Dorsal fins marked with hori- 

 zontal lines, or light basally and blackish distally ; caudal 

 dusky or crossed by dark lines ; anal dark, becoming blackish 

 distally but with the margin pale. 



Gillichthys dctnisus of the Gulf of California appears to 

 differ from the Californian G. niirahilis constantly in one im- 

 portant cranial character, the supraorbital rim of the skull 

 lacking the posterior wing-like processes developed in 

 mirahilis. 



Quiet Ilia y-cauda Jenkins and Evermann 



Two specimens, 25 and 28 mm. long to caudal base, were 

 taken by "Sir. Heller at San Filipe Bay, on the Gulf of Cali- 

 fornia. Head, 3.0; eye, 3.5; dorsal rays, V, 14 or 15; anal. 

 13 or 14; body with a dark reticulated pattern, but without 

 whitish spots ; dorsals and anal with dark markings ; caudal 

 base with a blackish bar emarginate posteriorly. 



Genus Ilypnus Jordan and Evermann 



This genus is closely related to Clevelandia, differing how- 

 ever in the development of a comparatively long slender pro- 

 cess on the shoulder girdle, and in the small size of the mouth ; 



