Starks: IcH'invoLoriicAL Survey about Sax Juan Islands. 181 



13. Sebastodes caurinus (Richardson). 

 Among the sexeral specimens of this common species is one very 

 dark individual with the fins and most of the body slaty-black; while 

 the lower parts, which in the other specimens are yellow, are broadly 

 washed with reddish-brown. 



14. Sebastodes clavilatus Starks, sp. nov. (Plate XXX.) 

 The head is contained 3 times in the length to the caudal base; 

 the depth 3.4 to 3.5 times. The mouth is small, with the lower jaw 

 moderately projecting and slightly entering the dorsal profile; its 

 tip projects a fifth of the diameter of the eye. The symphysial knob 

 is but little developed, and a very low convex portion of the dental 

 surface fits in a notch at the front of the premaxillaries. Anteriorly 

 the front of the premaxillary is on a level with the middle of the eye, 

 or a little below that point, and the maxillary reaches back to under 

 the middle of the eye; the length of the maxillary is 2.25 to 2.4 in the 

 head. The eye is moderate in size and is equal to the length of the 

 snout or a very little longer in the smaller specimen; it is contained 3.5 

 to 3.6 in the head. ■ The interorbital space is very slightly, but uniformly, 

 con\ex, and without median ridges; its width is four-fifths of the di- 

 ameter of the eye. Ocular ridges are not developed, and their region 

 is scaled over. The occipital ridges are moderately developed, rather 

 sharp, but little curved, diverging slightly backward, scaled over, 

 except at the extreme top, and ending behind in a fine sharp spine. 

 Minute, but sharp, preocular, postocular, and tympanic spines are 

 present. Preopercular spines small, the second the largest, the 

 fifth scarcely developed. The gill-rakers are very slender and in 

 length are equal to a half of the diameter of the eye; there are twenty- 

 six or twenty-seven of them on the anterior limb of the first arch. 



The scales are everywhere finely ctenoid, and accessory scales are 

 absent. There are from forty-six to forty-eight pores in the lateral 

 line, and an equal number above, counting the oblique series running 

 upward and forward. Scales cover the snout, preorbitals, and sub- 

 orbitals, maxillary, mandible, and median branchial rays; fine scales 

 are on the bases of all of the fins, and follow the dorsal spines. 



The pectoral is rather narrow and pointed; it reaches well past 

 the vent and the tips of the ventrals, but not to the anal. The caudal 

 peduncle is very slender and expands abruptly at the caudal base; 

 its depth is equal to one-fourth of the length of the head. The caudal 



