REGAN—MARINE FISHES. 247 
Callionymide. 
148. Callionymus cooperé, sp. n. 
Length of head (to gill-opening) 34 in the length of the fish. Eyes subcontiguous, 
their diameter 3 in the length of head ; gill-openings small, superior ; preeopercular 
spine with curved tip, with from 8 to 5 tooth-like projections on the upper edge and 
with an outer antrorse process at the base; maxillary not reaching the vertical from 
anterior edge of eye; occipital region rugose. Dorsal IV, 9; first 3 rays of anterior 
dorsal, in the male, produced into long filaments, of which the first, when laid back, 
reaches the caudal; second dorsal highest anteriorly, with the last ray longer than the 
3 preceding it, but not reaching the caudal when laid back. Anal 8-9, the rays 
increasing in length posteriorly. Pectoral reaching to about the fourth anal ray, 
ventral to about the second. Caudal, in the male, of moderate length, less than 3 as 
long as the fish. A series of dark spots along the middle of side ; membrane of anterior 
dorsal dusky. 
Maldives, Suvadiva and Haddumati, 40 to 44 fathoms. 
Two specimens (4s), the larger 56 mm. in total length. 
Allied to C. sagitta, Pall. 
149. Callionymus maldivensis, sp.n. (Plate 30, fig. 3.) 
Length of head (to gill-opening) 35 to 4 in the length of the fish. Diameter of eye 
3 to 3; in the length of head; eyes contiguous; gill-openings small, superior; 
preopercular spine straight, with serrated inner edge and an outer antrorse process 
at the base; maxillary extending nearly to the vertical from anterior margin of eye; 
occipital region rugose, not covered by skin. Lateral line single. Dorsal IV, 9; first 
ray of anterior dorsal, in the male, produced as a filament; second and third rays 
subequal, about 5 the length of head ; rays of the second dorsal equal, the last reaching 
the caudal when laid back. Anal 8, the rays increasing in length posteriorly. Ventrals 
extending to the origin of anal, pectorals a little beyond. Caudal, in the male, elongate, 
as long as the fish. Head and upper part of body spotted and marbled ; 5 or 6 indistinct 
dark cross-bars on the back; males with an oblong blackish blotch on the throat; 
spinous dorsal, in the male, with several oblique dark stripes or series of spots and with 
a small black spot at the tip of the third ray ; spinous dorsal, in the female, with 3 or 4 
irregular dark oblique stripes and with a large spot on the upper part of the membrane 
between the third and fourth rays; second dorsal with 3 or 4 series of oblong dark 
spots ; caudal with dark cross-bars ; outer half of anal blackish. 
Maldives, S. Nilandu, 30 to 36 fathoms. 
Several specimens (including only one male), measuring up to 160 mm. in total 
length. 
Closely allied to C. margarete, Rgn., from Muscat, which has a larger eye, the 
occiput covered with skin, and the coloration of the spinous dorsal different. 
