ZooL.— Vol. III.] GILBERT— PACIFIC COAST FISHES. 261 



but is without articulations. The pectorals are short and broadly rounded; 

 2 upper rays and 5 lower rays are simple, the others branched. The caudal 

 peduncle is widened posteriorly by the numerous procurrent rays of the 

 caudal fin. The caudal is rounded posteriorly, its length equaling the distance 

 from middle of pectoral base to front of orbit. 



The scales are small, with strong concentric striae, only 2 or 3 of which are 

 visible in scales on sides of body; more than this number on the larger scales 

 of the head. The bases of the vertical fins are scaly, the paired fins naked. 

 The opercles, the cheeks, and the top of head as far forward as the posterior 

 line of the interorbital space are completely invested with comparatively large 

 scales, the mandible, snout, and interorbital area alone naked. The lateral 

 line is strongly arched anteriorly, its least distance from dorsal outline \ its 

 distance from upper axil of pectorals. 



The color is uniform brownish gray or olive, the top of the head and the 

 vertical fins darker. 



Measurements in Hundredths of Length without Caudal. 



Total length 84 mm. 



Length to base of caudal 66 mm =100 



Length of head 34 



Length of snout 8 



Diameter of eye g>^ 



Interorbital width (over middle of eye) i2>^ 



Length of maxillary i2>^ 



Greatest depth (over ventral fins) 38 



Least depth (caudal peduncle) i2>^ 



Depth of head (at occiput) 29 



Distance from tip of snout to front of dorsal 51 



Distance from tip of snout to insertion of ventrals 37 



Distance from tip of snout to origin of anal 60 



Length of dorsal base 46 



Length of anal base 30 



Longest dorsal ray 16 



Longest anal ray 15 



Longest pectoral ray 18 



Longest ventral ray 13 



Longest caudal ray 30 



The genus Icichthys is said to differ from Schedophilus in 

 the larger size of the scales and in the lack of any notable 

 compression at the bases of the dorsal and anal fins. The 

 species here described agrees with Icichthys in the size of 

 the scales, and with Schedofhilus in the compression of the 

 bases of the fins. It is not probable that Icichthys can be 

 retained as a valid genus. 



I take pleasure in associating the species with the name 

 of its discoverer, my friend and colleague, Dr. Harold 

 Heath. 



