492 
BULLETIN OF THE UNITED STATES FISTI COMMISSION. 
month below mid-longitudinal line of body, so that ventral profile of head is much less convex than 
dorsal; back of front of body, dorsal and ventral outlines almost symmetrically converging in gerale 
curves to base of caudal peduncle; dorsal curvature meeting peduncle in advance of ventral curvature, 
so that posterior end of body is unsymmetrical and the peduncle in most specimens is bent somewhat 
upward; depth of caudal peduncle at base 7 in length of body; 4 in greatest depth of body; mouth 
short and somewhat oblique; lips rectangular, being straight in front and on sides; teeth in jaws in 
bands in front, villiform in upper jaw and an outer series of very slightly enlarged teeth; no teeth on 
vomer or palatines; posterior margin of opercle running from above downward and forward, not reaching 
to posterior margin of~ gill-opening and leaving branch iostegals exposed on side of head, 2 flat spines at its 
angle near upper end of gill-slit; posterior limb of preopercle with 5 flat, short, wide spines, the lower 
two more slender, elongate and curved upward; interopercle with a long, strong spine directed backward; 
preorbital with a large, flat spine directed downward and backward, lying in groove above maxillary 
and close to it; eye almost circular, or elliptical, with longer diameter vertical; horizontal length of 
space back of eye 1.8 in length from tip of snout to angle of opercle, which is a very oblique line, 
angle of 45° with line from middle of caudal peduncle to middle of greatest depth of body; interorbital 
flat, narrow, three-fifths of eye; nostrils of equal size, posterior above anterior, each with slightly raised 
margins forming very short tubes, anterior with elongate flap on upper margin; head and body 
scaleless; skin of body everywhere roughened by numerous minute warty elevations; top of head 
covered with small rough ossifications, specially large ones reaching from between eyes to nape; other 
parts of head and body, especially fore part of back, finely villous, villi in some very small and 
inconspicuous, in others comparatively large and prominent; lateral line beginning above upper end 
of gill-opening, descending with gentle convexity upward to middle of base of caudal peduncle, 
obsolete on peduncle in some, in others extending in straight line to end of peduncle; dorsal spines all 
short, the fifth longest, 3.6 in head; the first very short, second to fifth abruptly longer and of almost equal 
height, the next 3 regularly descending again to size of first; soft dorsal higher than spinous, middle 
rays longest, 2.6 in head. The degree of separation of the two parts of dorsal fin varies considerably. 
In some specimens the two are definitely discontinuous and in some distinctly continuous, while most 
of them are intermediate in this regard, so that probably the types of the species M. maculalus Gray 
and M. unipinna Gray are simply two extremes of the same species, since otherwise they do not differ 
Caudal fin rounded, median rays 5 in length of body; base of fin covered by skin of peduncle; pectoral 
rays directed upward and backward at angle of 45°, middle ones longest, 6.8 in length of body. 
Color in life, head and body drab, lighter below, covered with small, bright red spots; fins 
unmarked. 
Nine specimens, 1.5 to 1.75 inches in length, were taken from coral heads on the reef in front of 
Honolulu. This species is quite common among the branches of coral, where they are so able to 
hide and fasten themselves that they are dislodged with difficulty. 
Micropus maculatus Gray, Zool. Miscellany, 20, 1831 (Owaihiand Hao); Gunther, Cat., II, 147, 1860 (Owaihi and Hao); Fische : 
der Siidsee, m, 86, 1874 (Otalieite and Sandwich Islands). 
Micropus unipinna Gray, Zool. Miscellany, 20, 1831, Pacific; Giinther, Cat., ii, 147,1860; Fische dor Siidsee, ii, 8G, 1874 
(Sandwich Islands, Otaheite, Vavau, Fiji, Pelew, Maduro). 
Caracanthus typicus Kroyer, Naturhist. Tidssks., I, 264 and 267, 1844. 
Amphiprioniehthys apistis Bleeker, Nat. Tyds. Ned. Sud., vm, 170, 1855 (Cocos Islands); Gunther, Cat., n, 144, I860 (Kokos 
Islands); Kner, Sitzb. Ak. Wiss. Wien, 1868, 17, pi. in, fig'. 8. 
Centropus staurophorus, Kner, Sitzb. Ak. Wiss. Wien, 1860, 3 (Zanzibar). 
Caracanthus apistis, Bleeker, Atlas Ichthy. Ind. Neer., ix, pi. 416 (Soap., pi. vi), fig. 5, 1877. 
Family L. SCOKP.EMILPj. 
223. Sebastopsis kelloggi Jenkins, new species. 
Head 2.5 in length; depth 2.7; eye 3.3 in head; snout 4 in head; interorbital about half eye; D. 
xii— i, 9; A. hi, 5; P. 19; lateral line with 23 tubes, about 28 scales in transverse series. Body moder- 
ately elongate, compressed posteriorly, greatest depth about under sixth and seventh spines; snout 
blunt; jaws subequal; mouth large, oblique, below axis of body; maxillary broad, reaching to pos- 
terior border of eye; eye large, its lower border above axis of body; interorbital space narrow, deeply 
concave without ridges; a large, broad, dermal flap on upper border of anterior nostril, a thin cirrus on 
anterior upper margin of eye; a conspicuous tentacle as long as half the eye diameter at posterior 
upper margin of eye; slender cirri along lateral line. Spines on head as follows: a short, sharp, conical 
