REPORT ON FISHES COLLECTED IN THE HAWAIIAN ISLANDS. 
509 
248. Salarias rutilus Jenkins, new species. 
Head 4.3 in length; depth 5.3; eye 3 in head; D. xii, 20; A. i, 21; C. 15; P. 14. Profile of head 
and body almost identical with that of Salarias saltans; profile of back and head from eye to base 
of soft dorsal straight and horizontal; dorsal and ventral profile of body from base of soft dorsal and 
anal fins slightly converging to apex of caudal peduncle, whose depth is 2 in depth of body through 
pectoral, or 10 in length; body compressed, width decreasing posteriorly; width of apex of caudal 
peduncle less than diameter of pupil; profile of snout slightly receding from eye to mouth; profile 
before and above eye prominently bulging; eye at upper anterior angle, of side of head, front of head 
forming an isosceles triangle; interorbital very narrow, less than diameter of pupil; suborbital (1 in 
head; branchiostegals £, upper ones projecting beyond posterior end of opercle; a small, backward 
curved, canine tooth in back part of each side of lower jaw well within the outer teeth which form a 
border to each jaw of 5 small teeth; a fine, slender, simple tentacle over the eye; mouth inclined 
slightly upward posteriorly; chin sloping backward and downward from mouth; gill-openings large, 
members united, fused with isthmus; lower jaw included; dorsal spines of nearly uniform height, 
median one longest, 2 in head; last one considerably shorter, about 3 in head; a deep incision between 
first and second dorsals; first ray of second dorsal slightly shorter than longest ray of first dorsal; last 
soft ray of same length as last spine of first dorsal; other rays slightly elongated toward middle of fin; 
soft dorsal not united with the caudal; anal similar in size and shape to soft dorsal; last ray opposite 
penultimate dorsal ray; caudal slightly rounded, median rays nearly equal to length of head; pectoral 
Tig. 19 . — Salarias rutilus Jenkins, new species. Type. 
bluntly pointed, median rays longest, equal to caudal, nearly equal to head; lateral line forming a 
gentle curve over pectoral from upper end of gill-slit to middle of side of body; ventral of 2 simple 
rays; inner ray a little the longer, 1.5 in head. Structure and form almost identical with that of 
Salarias saltans, the chief differences being in coloration. 
Color in alcohol, ground color pale reddish brown; lower part of opercle and lower surface of 
head including the gill-membranes with numerous small reddish dark brown spots; spots extending 
on side of body, left of pectoral and on anterior surface of pectoral; side of body with 9 (in each of 4 
specimens) vertical dusky bands; first just back of base of pectoral, last just before base of caudal; 
bands widest anteriorly, there they are Avider than interspaces; posterior ones equal to interspaces, 
split above and below and so invaded by ground color that they have a double- H form, one H above 
the other; belly plain pale; a black quadrate spot between the tips of first and second dorsal spines, 
the part between first and second a solid black; back of the marginal half of fin, and posteriorly the 
whole fin with regular broAvn blotches forming very irregular longitudinal bands; soft dorsal similarly 
marked, first bands more definitely formed; on soft dorsal spots mostly on spines; caudal spotted like 
dorsal fins, spots forming on it vertical bands; anal fin with a dusky margin, formed of a dusky area 
on membranes back of tips of rays; a series of vertically elongate, oval, dark brown spots along middle 
of fin; ventral unmarked; on anterior part of side of body small brown spots on both black bars and 
interspaces. 
This description is based on the type, No. 50695, U. S. N. M., 2.5 inches long and 3 cotypes, the 
smallest 2 inches long, caught by me in holes in the rocks at Ioav tide near Honolulu. 
