604 CALIFORNIA ACADEMY OF SCIENCES. 36 



third, 2$ in head. Frontal ridges elevated. Bright red, 

 with black bands. Peritoneum white. Monterey to Van : 

 con ver's Island, rare southward. nigrocvnctus* 



Appendix. 



For convenience of reference, I add in full the article 

 by Eigenmann & Beeson, including their proposed rear- 

 rangement of the group based on a study of its cranial 

 characters. 



PRELIMINARY NOTE ON THE RELATIONSHIP OF THE SPECIES 

 USUALLY UNITED UNDER THE GENERIC NAME SEBASTODES. 

 (Eigenmann & Beeson, American Naturalist, 668-671, July, 1893.) 



On the Pacific coast of temperate North America, a 

 large number of species of viviparous Scorpajnidae are 

 found. They range all the way from tide water to a 

 depth of 1600 feet, from Cerros Island to Alaska. They 

 are most abundant on the coast of California, about 30 

 species being known from San Diego, and a like number 

 from Monterey. In size they vary from 1 lb. to 30 lbs. 



The species have been variously grouped as forming 

 one genus by Jordan & Gilbert, as forming two by Jor- 

 dan, and as forming four by Gill. Jordan & Gilbert, in 

 their Synopsis, arranged the species known to them ac- 

 cording to the greater or less prominence of the spinifer- 

 ous ridges of the skull. In examining the skulls of a 

 number of them, one of us, several years ago, noticed 

 that in a number of species the parietals meet over the 

 supra-occipitals, while in others they are separated, and 

 the supra-occipital is exposed above for its whole length. 



A more recent examination of a larger series of skulls, 

 tended to show that, if we admit the relationships pointed 

 out by Jordan & Gilbert, this greater or less development 



' Sebastea nigrocinclua Ayr.--. Proc. Cal, Acad. Sci., ii, 25 and 217, fig. 6, 

 1859. 



