10 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
with rows of small spines distinctly separated from the high forehead 
and elevated orbits. Nape and l)r(^ast with coml)-like crest. Dorsal 
tin short. Angles of body rough, furnished with tleshy tags. East 
Indies. 
{aXs, sea; Ka/^iTTog, caterpillar.) 
8. HALICAMPUS KOILOMATODON (Bleeker). 
Ha]icampuf< consjyiclllntiifi Kaup, Lophobr., 1856, p. 22, "India," New Hollaml 
(not of Jenyna). 
Halicam2ms grayi Kaup, Mannncript British Mnseiiin, "India," (noted by Kaiip 
in synonymy). 
Synfpiathufi koUomatodon Bleeker, Act. 8or. Sci. Indo-Nederl., Japan, V. ]). 10, 
pi. I, lig. 1, Nagasaki. Specimen 4 inches long. 
Syngnatlius grayi Gunther, Cat. Fish., VIII, 1870, p. 169, after Kaup's type of 
uncertain locality, possibly Australia. 
D. 20. Rings 18 + 35. Base of dorsal fin elevated. Snout less 
than half head, with series of minutes spines; forehead high, its pro- 
file aliruptly descending toward snout. Occiput and neck elevated 
into a crest; eyes large, prominent; edge of orbit rough, Opercle 
with radiating strise and a vstrong ridge bent upward; humerus with a 
trihedral prominence. Body not deeper than broad; shields without 
spines, but the ventral edges of the caudal rings forming a pouch 
horizontally dilated. Tail half longer than the body. Vent ])elow 
middle of dorsal, which stands on four rings. Caudal very small. Egg 
pouch half length of tail. A deep brown spot on side of fourth body 
ring. (Gunther.) 
Coasts of Japan and southward, rare; recorded from Nagasaki hy 
Bleeker. Not seen by us. We use the name koUomatodon as being 
prior to the adoption of grayi by any author, and also as its type is 
certainly of Japanese origin. (KoiXco/ua^ a hallowed place ; odovg^ 
tooth.) 
8. UROCAMPUS Gunther. 
Urorampn.'^ Gunther, Cat. Fish., VIII, 1870, p. 179 {namts). 
Pipe-fishes, with the dorsal on the tail far liehind the vent. Bod}^ 
elongate, compressed, with distinct longitudinal ridges; upper edge of 
trunk continuous with that of tail; lateral line continuous with lower 
caudal edge. Tail elongate, very slender, quadrangular, tapering, the 
last rings very small; pectoral developed. Dorsal entirely on the tail. 
[ovpa^ tail; KtY/.i7rog^ a])breviation for Hippocampus.) 
9. UROCAMPUS RIKUZENIUS Jordan and Snyder, new species. 
(Plate VII.) 
Head 11^ in length, 2| in trunk; depth 2^ in head; snout 2i; eye 
6i; dorsal 10, on .5 rings; anal rings 11 + 59. 
Body short; the depth anterior to anal opening about equal to length 
of snout; tail long, very slender, tapering to an extremely small caudal 
