FISHES OF HAWAIIAN ISLANDS. 
649 
dorsal spine 25; distance between dorsals 8; length of caudal 75; longest ventral ray 23; longest pec- 
toral ray 24. D. iv-9; A. 8; P. 17. 
Very slender, with slender preopercular spine bearing 4 or 5 hooked spines on upper surface, in 
addition to the terminal spine; interorbital space very narrow, but grooved; none of the dorsal spines 
produced, the second the longest, the third and fourth rapidly shortened; head comparatively narrow, 
its width half its length; snout short, maxillary reaching vertical from front of eye; teeth villiform, in 
moderate bands, in jaws only; 2 or 3 enlarged teeth directed backward and forward in the inner series, in 
the middle of each mandibular ramus; occipital region flattened, very slightly roughened; preopercular 
spine slender, straight, its tip hooked up to form a spine, its upper margin furnished with 4 or 5 other 
spines, retrorsely hooked and evenly distributed along its whole length, not grouped at its distal end 
as usual in this genus; lower margin of spine with 2 or 3 minute teeth, irregular in size and position; 
the usual strong hooked spine present at base on outer face; preopercular spine reaching half the dis- 
tance from its base to opercular margin, its length half diameter of eye. 
None of the dorsal spines produced or filamentous; upper outline of fin rounded; first spine equal 
to second or slightly shorter, the third and fourth rapidly shortened; tips of first, second, and third 
spines in the declined fin reaching the same vertical, which is that of the third ray of second dorsal; 
soft dorsal comparatively low, the last ray falling far short of base of caudal; anal similar to second 
dorsal, but higher, its ray slightly passing caudal base, its length slightly greater than that of soft 
dorsal and its insertion a little more posterior; the 3 middle caudal rays are produced to form a fila- 
mentous process, the total length of caudal equaling length of trunk (without head); the membrane 
of inner ventral ray joining pectoral at the middle of its base; pectoral extending beyond tips of ven- 
trals, both fins passing front of second dorsal; lateral line single, as usual, and with a characteristic 
beaded appearance; it runs out on caudal fin, accompanying the fifth ray of the upper lobe for a 
distance equaling two-thirds diameter of eye. 
Color in spirits, dusky olive on top of head and dorsal half of body, finely vermiculated with nar- 
row dusky lines inclosing very small spots of the ground color; lower half of sides of head and body, 
including branchiostegal membrane, the upper surface of ventral fins with the membranes connecting 
them to base of pectoral, and the lower half of caudal fin golden-yellow, marked with bright blue 
spots and lines, each blue mark w r ith a wide dusky margin; on lower side of head and trunk the blue 
spots frequently coalesce to form lengthwise lines; belly and lower parts generally plain dusky; a 
quadrate black blotch under spinous dorsal, a narrow dark bar under last dorsal rays, sometimes one 
■also under first dorsal rays, and one on back of tail, these dark bars all faintly marked; a blackish 
streak from eye around tip of snout; spinous dorsal dusky golden, crossed by zigzag blue lines, each 
narrowly edged with blackish; soft dorsal translucent dusky golden, with irregular blue lines and 
blotches, arranged for the most part longitudinally. Anal similar to second dorsal, the blue lines more 
oblique, the marginal third of fin black; darker markings on caudal arranged in the form of cross-bars. 
The above description is drawn from a male specimen. In females the middle caudal rays are not 
produced, and no trace of the blue and golden coloration can be detected. The anal is translucent, 
with a narrow black edge, the median caudal rays are faintly barred, and the spinous dorsal is black 
with narrow oblique lighter lines. 
The pectoral rays vary in number from 16 to 18; one specimen has but 8 dorsal rays; otherwise 
the dorsal and anal fin rays present no variation. 
The species was taken at the following stations: Nos. 3857, Pailolo Channel, between Molokai and 
Maui, 127 to 128 fathoms; 3858, Pailolo Channel, between Molokai and Maui, 128 to 138 fathoms; 4066, 
off the eastern coast of Maui, 49 to 176 fathoms. 
Callionymus corallinus, new species. Fig. 251. 
Type, 40 mm. long, from station 3873, Avau Channel between Maui and Lanai islands, depth 32 to 
37 fathoms; type, No. 51581, U. S. Nat. Mus. 
Length of head, from tip of snout to opercular margin in front of pectorals, 40 hundredths of total 
length without caudal; from tip of snout to gill-opening 33; diameter of orbit 9; length of snout 12; 
length of maxillary 11; greatest width of head 27; greatest depth 18; length of preopercular spine 12; 
distance from tip of snout to front of anal 55; length of anal base 27; length of longest dorsal spine 23; 
longest dorsal ray 17; longest anal ray 16; longest ventral ray 30; length of pectoral 25; length of caudal 
