PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 235 
Family SCORPASNID A. 
*20. Sebastodes species. —Rock-cod. 
Family COTTID 2%. 
21. Leptocottus armatus Grd. 
Two specimens of this extremely common Cottoid were taken with a 
seine from a shallow stream emptying into the ocean at Rosario, about 
15 miles below the boundary line and near the Coronado Islands. The 
beach at this point is of firm, light brown sand, and the rocky cliff be- 
hind the sand strip is red volcanic rock. <A few rocks jut into the sea, 
entirely destitute of life except for the abundant mussels and a very 
little thread-like sea-weed. 
22. Oligocottus analis Grd. 
Abundant in tide pools on Todos Santos Bay. 
Family GOBIESOCID &. 
23. Gobiesox rhessodon Rosa Smith. 
Three young specimens were scraped with a dip-net from living Zos- 
tera. They were plain, dark brown, very slender, and from seven- 
eighths of an inch to one inch in total length. A few adult examples 
were found adhering to the under surface of stones. 
Family BLENNID/®S. 
24. Isesthes gilberti Jordan. 
Among ten specimens of Isesthes from Todos Santos Bay, the largest 
measures 53 inches; head, 44; depth, 44; D. XII, 18; A. 21. Five 
other specimens (smaller) have the same fin formula. A specimen, 24 
inches in length, has D. XII, 16; A. 20; while another somewhat larger 
has D. XI, 19; A. 21, and an individual less than two inches long has 
D. XII, 16; A. 19; the orbital tentacles of this last being only trifid in- 
stead of multifid, the gill-opening, as in all from this locality, extending 
downward to lower edge of pectoral. The color of the largest speci- 
men is dull olivaceous, all the markings more obscure than in smaller 
ones. A specimen 24 inches long has the following life markings: a 
black spot, larger than pupil, on second dorsal spine; eight or nine 
small blue dots on median line of side (below lateral line), from pectoral 
to caudal; ground color of head bluish gray, finely dotted with red- 
dish; two black stripes downward and forward from eye, the first 
meeting the one from opposite side close behind symphysis of lower 
jaw, the second meeting on throat; tentacles multifid. 
25. Clinus evides J. & G. (= Gibbonsia elegans Cooper). 
This species was rather abundant in rock pools, most of those taken 
being ‘‘ variously variegated, with light and dark shades of red, brown, 
and white,” the predominant color being reddish purple; a few were 
