NO. 1414. FISHES FROM PUGET SOUND—GILBERT AND THOMPSON 977 



of variation of /. horealis and belong with that species. The state- 

 ment introduced by Jordan and Everniann into the key to species of 

 Tcelinui<^''' denying- the presence of a nasal tentacle in /. straho^ is an 

 error. A simple nasal tentacle is present in the types of /. ><fraho, 

 wholly similar to that found in typical loreaUit. 



ASTROLYTES FENESTRALIS (Jordan and Gilbert) . 

 Artedius axperulus Starks, Pnx-. Cal. Acad. Sci., 2d ser., \'I, 1896, \>. 553. 



No specimen of this common species was included in the submitted 

 material. It is mentioned here to place on record the fact that the 

 immature types of Artedius asperuli/N are members of this species. 

 In the young of Asfrolytes^ the lowermost of the three prongs of the 

 preopercular spine is still undeveloped at a time when the upper two 

 prongs are strong and equally developed. The third or lower prong 

 makes its appearance first as a small, flattened prominence on the lower 

 side of the middle prong near its base. We find it undeveloped on one 

 side, but evident on the other, in a specimen of A. fenestra! !>< nearly 

 twice the size of the types of ^1. ((><2^eruhis. In one of the latter it 

 is apparent on one side, though minute. In all the types, the occiput 

 is partly covered with spinous plates and bears a number of filaments. 

 We have compared the types directly with A. fenedralis and find them 

 to agree in all I'espects. 



The genus Axyi'las Starks'^' is scarcely distinct from Astroh/tes, with 

 which it agrees in all characters except the slenderness of the preoper- 

 cular spine. In the type of A,r//riai< hirrlngtoni^ a short prominence 

 is found on the lower side of 'the lower prong, agreeing in position 

 with the third prong in A><tr<>hites fe)iei<tr<dis. 



STELGIDONOTUS, new genus (Cottidae). 



Allied to Rdxtriaiix : difl'ering in the cuboid head, with its wide inter- 

 orbital space, vertical cheeks, ])lunt snout, and broad U-shaped subin- 

 ferior mouth, in the al)sence of plates or spines on the head, and in the 

 simple, strong, falcate preopercular spine. 



Type.—Stelgidoiiotus Jattfrons, new species. 



STELGIDONOTUS LATIFRONS, new species. 



Type 24 mm. long, from Friday Harbor, Washington, collected b}^ 

 Prof. Trevor Kincaid. Cat. No. 53027, U.S.N.M. 



Dorsal IX, 19; anal 1.5; pectoral 18; ventral I. 8; tubes in lateral 

 line 39. 



Body slender, terete, tapering to the very slender caudal peduncle. 

 Head with vertical cheeks, its height and width equal. Occiput gently 



« Fishes of Xorth and ]\Iiddle America, p. 1894. 

 SProc. Cal. Acad. 8ci., 2d ser., VI, 1896, p. 554. 



