384 BEVISION OF SEBASTINJi—EIGENMANN AND BEESON. vol. xvii. 



Lower spines of preopercle short and flat, tlie second not reaching base of third. 

 Highest dorsal spine 2| in head. Oval, deep, compressed. Lower jaw with 

 an acute, antrorse symphyseal knob. Preorbital narrow, with a sharp retrorse 

 spine. Gill rakers long, 1^ in orbit. Eye little longer than snout. Second 

 anal spine longer and stronger than third, 2^ in liead. Maxillary and man- 

 dible scaly. Peritoneum black. Head olivaceus, strongly tinged with creamy 

 red, especially below; membrane of both dorsals covered with many small, 

 round, black spots; similar spots iisually on the body. Head 3; depth 2|; D. 



XIII, U; A. Ill, 8; tubes 70 ovalis, 3. 



hh. Lower spines of preopercle large, the second reaching beyond base of third. 

 Second anal spine enlarged, much stronger and longer than third, 2^ in head ; 

 highest dorsal spine 2f in head. Caudal peduncle I the depth; maxillary 

 extending to middle of pupil, 2^ in head; interorbital space flat, 1^ in orbit. 

 Eye 3i in head. Preorbital very narrow, lobate, but without spines. Scales 

 small, rough; those above lateral line much smaller than others and irregu- 

 larly disposed; those on breast, snout, maxillai\y, and mandible smooth. Gill 

 rakers 2 in orbit. Dusky above, with faint traces of darker blotches along 

 back. A dark blotch on opevcle, one on sul)opercle, and one on upper half of 

 axil. Top of head, including membrane of premaxillary, dusky. Spinous dorsal 

 with a dark marginal band; other fins, except pectorals, margined with 

 black. Peritoneum black. Head 3s-; depth 3| ; D. XIII, 1.5; A. Ill, 8; tubes 

 50 [Gilbert] alutum, 4. 



1. ACUTOMENTUM MELANOSTOMUM, Ei en man n and Eigcnmann. 



Sehastodes melanostomm, Eigenmann andEiGENMAXX, Proc. Cal., Acad. Sci. 2d 

 Ser., Ill, p. 17, 1890 (San Diego) ; id. Proc. U. S. Nat. Mus., xv, 1892, p. 164, 

 (1893), (San Diego); id. Ann. IS^.Y. Acad. Sci. 1892, p. 355. 



Sehastichthys introniger, Gilbert, Proc. U. S. Nat. Mus., xiii, 1890, p. 81 (1891) 

 (coast of California south of Point Conception). 



Sebastodvs introniger, Eigexmanx and EigeiXMAnn, Ann. N. Y. Acad. Sci., 1892, 

 p. 355. 



Haijitat. — Coast of California south of Point Conception. 



2. ACUTOMENTUM MACDONALDI, Eigenmann and Beeson. 



Sehastodes proriger, Eigenmanx and Eigexmaxx, Proc. Cal. Acad. Sci., 2d 

 Ser. Ill, p. 15 (San Diego), not S. proriger, Jordan and Gilbert. 



Acutomentum macdonaldi, Eigenmanx and Beeson, Amer. Nat., July, 1893 (San 

 Diego). 



Habitat. — Oft" San Diego in 100 fathoms. 



Tliis species is known from a single specimen in the ^rational Museum. 

 In general appearance it resembles S. proriger, with which it was for a 

 time confounded. The original description is reproduced in the key. 



3. ACUTOMENTUM OVALIS (Ay res). 



Sehastodes oralis, Ayres, Proc. Cal. Acad. Sci., 1862, p. 212, fig. 65— Jordan and 

 Gilbert, Syn. Fish. N. Am., p. 660 (coast of California)— Eigexmann 

 and Eigenmann, Proc. U. S.Nat. Mus., xv, 1892, p. 163(1893), (San Diego); 

 id., Ann. N. Y. Acad. Sci., 1S92, p. 355 (San Diego, Cortes Bank, Santa Bar- 

 bara, Monterey). 



Sehastichthys ovalis, Jordan and Gilbert, Proc. U. S. Nat. Mus., iii, 1880, p. 143 

 (Monterey Bay) ; p. 455 (Monterey Bay, Santa Barbara)- Jordan and JouY, 



