3182 Bulletin 4.7, United States National Museum. 



crossed irregularly with white; anal fin pale pink, crossed with dark 

 brown. There are 2 or 3 perfectly distinct types of coloration, as follows : 

 Some specimens from pools containing green algae are pure light green, 

 others from coralline pools are tinged with lavender, as B. embryiim. This 

 species resembles most closely O. maculosus, which name has been erro- 

 neously applied to it, but it differs markedly in its slenderer body, more 

 pointed snout, the arrangement of the cirri, and the perfectly distinct 

 coloration, also in the greater length of the dorsal fins, the enlargement 

 of only one anal ray in the male, and the shortness of the maxillary. Coast 

 of California. 



Specimens are at hand from Crescent City, Cal., Bolinas Bay, Half Moon 

 Bay, Monterey Bay, and San Luis Obispo, Cal. Found in all kinds of 

 pools, from San Francisco to Monterey Bay, but nowhere common. Length 

 60 mm. The most beautiful and active of the tide-pool fishes, extremely 

 variable in color. (Greeley.) 

 Centridermichthys maculosus, GUNTHER, Cat., n, 171, I860; not Oligocottus maculosus r 



Girard. 

 Oligocottus maculosus, JORDAN & GILBERT, Synopsis, 718, 1883 ; JORDAN & EVERMANN,. 



Fishes of North and Middle America, n, 2013, 1898. 

 Oligocottus snyderi, GREELEY, in Jordan & Evermann, Fishes of North and Middle America^ 



HI, 2871, 1898, Pacific Grove, Cal. (Type, No. 5846, L. S. Jr. Univ. Mus. Coll. 



Greeley &. Maddren.) 

 Dlalarchus snyderi, GREELEY, Bull. U. S. Fish Com. 1899, 15, fig. 4. 



946 (c) EXIMI A, Greeley. 



Eximia, Greeley, Bull. U. S. Fish Com. 1899 (Dec. 13, 1899), 18 (rubeUio~). 



Allied to Oliyocottus, but differing in the presence of a large three- 

 pointed preopercular spine instead of the simple forked spine of Oligocot- 

 tus. Skin smooth. A slit behind the last gill. 



2384 (c). EXIMIA RUBELLIO, Greeley. 



Head 2; eye 3f in head; snout 3f; D. VII or VIII-15 or 16; A. 12 or 

 13; P. 13 or 14; V. 1, 3. Body compressed, snout pointed and compressed, 

 head deep, occiput narrow, slightly concave; iuterorbital space narrow, 

 the large eye, shallowly grooved. Nasal spines prominent, very large- 

 and pointed. Teeth small, pointed on jaws, vomer and palatines; jaws 

 equal, mouth horizontal, maxillary 3 in head, reaching a vertical below 

 anterior edge of pupil. Margin of preopercle armed with a very strong 

 spine as long as eye, extending backward and downward, bearing on its 

 upper surface a second and third spine, both pointing back and up ; all 

 the spines covered with skin in life; opercle ending in a rounded flap. 

 Branchiostegals 6, not united to the isthmus; gills 3, a slit behind the 

 last gill. Anal papilla inconspicuous. Dorsal fins not joined; first dorsal 

 beginning in advance of margin of opercle, first 2 spines short, the 

 upper margin slightly rounded ; soft dorsal beginning in advance of origin 

 of anal, all the rays and spines very slender, pectoral reaching well 

 beyond the origin of the anal; anal fin small, the rays slender, the mem- 

 branes emarginate between each 2 rays ; in the males the first ray enlarged,, 

 the second slightly elongated, the 2 united and not separated from the rest 



