382 BE VISION OF SEBASTINJE—EIGENMANN AND BEESON. vol. xvii. 



Tlie S[)ines of tlic cranium in this species are as liigli as tliose in 

 serriceps. To those of serriceps are added median frontal rid<>es. 

 With age the spines, as well as the frontal ridges, become broken into 

 a large number of tubercles or spines so that the individuals of the 

 primary spines can hardly be separated from each other. The frontal 

 ridges in this way sometimes give rise to a tubercle corresponding in 

 position to the coronal spines of Auctospina. The mucous canal 

 system is very highly developed in this species. The specimens exam- 

 ined are from San Francisco and Monterey. 



2. SEBASTICHTHYS SERRICEPS, Jord.iu and Gilbert. 



Schasticltthys svrviceps, Jordan ami Gilukrt, Proc. U. S. Nat. Miis. iii, 1S80, p. 

 38 (1881) (Santa Catalina; Santa Barbara); op. cit., p. 455 (San Francisco, 

 Monterey, Santa Barbara, San I'edro, San Diego). — Jordan and Jouy, 

 Proc. U. S. Nat. Mus. iv, 1881, p. 7, (1882).— Jordan and Gilhert, I. c, p. 

 59 (San Diego to San Francisco).— Jordan, Cat. Fisli. N. Am., p. 108, 1885 

 (name). — Eigenmann and Eigenmann, Notes, San Diego Biol. Lab. i, p. 7, 

 1889 (San Diego). 



Sehastodi's serriceps, .Tordax and Gilbert, Syu. Fish. N. Am., p. 67*), 1883 (San 

 Francisco to Cerros Island). — Eigenmann and Eigenmann, Proc. U. S. Nat. 

 Mns. XV., 1892, p. 168 (1893), San Diego); id., Ann. N.Y.Acad. Sci., 1892, 3.55 

 (San Diego, Cortes Bank, San Pedro, Santa Barbara, Monterey, San Fran- 

 cisco). 



Habitai'. — San Diego to San Francjsco. 



This is one of tlie smaller species and is abundant in shallow water. 

 On the Cortes Bank I have taken it in 15 fathoms. 



3. SEBASTICHTHYS RUBRIVINCTUS, Jordan and Gilbert. 



Sebastichthys rubriv'mcius, Jordan and Gilhert, Proc. U. S. Nat. Mus., in, 1880, 

 p. 146 (1881), (Monterey) ; op. cit., p. 291 (Santa Barbara, Monterey, San Fran- 

 cisco) ; op. cit., ji. 455 — Jordan and JoUY, Proc. U. S. Nat. Mns., iv, 1881, p. 7 

 (1882), (Monterey) — Jordan and Giluert, 1. e., p. 57 — Eigenmann and 

 Eigenmann, Notes San Diego Biol. Lab., i, p. 7, and ii, p. 1. 1889 (San 

 Diego). 



Sebastodes rubrivinctus, Jordan and Gilisert, Syn. Fish. N. Am., jt. 670, 1883 

 (Santa Barbara to Monterey) — Jordan, Cat. Fish. N. Am., p. 108, 1885 

 (name) — Eigenmann and Eigenmann, Proc. U. S. Nat. Mus., 1892, p. 167 

 (San Diego) ; id., Ann. N. Y. Acad. Sci., 1892, p. 3.55 (San Diego, Cortes Bank, 

 Sauta Barbara, Monterey). 



Habitat. — San Diego to Monterey. 



This species is only occasionally taken. The specimens examined 

 are from San Francisco, San Diego, and Cortes Bank. 



4. SEBASTICHTHYS DIPLOPROA, Gilbert. 



Sebastichtlnis diploproa, Gilbert, Proc. U. S. Nat. Mus., xiii, 1890, p. 79 (1891), 



(coast of California, south of Point Concei»tion). 

 Sebastodes diploproa, 'Emv.NMANN and Eigenmann, Ann. N. Y. Acad. Sci., 1892, 



p. 355 (Santa Barbara). 

 Habitat. — Coast of Ciilifornia, south of Point Conception. 



