IN THE QUEENSLAND MUSEUM. 
17 
ciliary ridges short, not extending backwards to opposite the middle 
of the occipital section ; opercular ridge low. Dorsal profile linear ; 
all the divisions of the body transversely concave, the ridges mode- 
rately prominent ; dorsal ridge feebly spinigerous, terminating on 
the 2nd. caudal ring; lateral ridge curved, continuous with the lower 
caudal ridge; abdominal ridge ceasing on the anal ring; upper 
caudal ridge commencing on the anal ring ; all the caudal ridges 
strongly spinigerous throughout their entire length. Dorsal fin 
inserted upon 2 body and 3 caudal rings, with 22 rays, the base not 
elevated, its length equaling the head from the tip of the upper 
jaw. Caudal fin with 10 rays, 3f in the length of the head. Pec- 
toral with 14 rays, reaching upon the 2nd. body ring. Ovisac 
occupying 14 rings, its length £ of that of the tail. Pale olivaceous 
brown the head lighter, [spina, spine ; caudatus, tailed]. 
Type in the Queensland State Museum. 
Total length 57 millimeters. 
Described from an ndult male with distended egg-pouch, col- 
lected at Cape York by Mr. Kendall Broadbent. 
Closely allied to C. brevirostris, but differing in the stronger 
cephalic ridges, the more numerous osseous rings and dorsal rays, 
the more anterior origin of the dorsal fin, the spinigerous tail, etc. 
HIPPOCAMPIDiE. 
HIPPOCAMPUS DAHLI sp. nov. 
DAHLS SEA-HORSE. 
Dorsal fin with 20 or 21 rays, inserted upon 3 body and 1 tail 
rings. Rings 11 + 40 or 41. Body slender, its depth If to 2 in 
the length of the head. Diameter of eye 3i to 4 in the length of 
the snout, which is If to 2 in the length of the head and much 
longer than its postorbital portion. Frontal ridges low, convergent 
anteriorly, descending gradually to their point of junction on the 
snout. Supraorbital spine moderate, blunt, with the tip more or 
less coarsely granulose, directed outwards and backwards ; no 
postorbital, suborbital, or temporal spines. Coronet low, preceded 
by a rather short ridge, which terminates in a slightly hooked spine ; 
its summit is surrounded by three pairs of low, blunt, finely 
denticulated tubercles with an unpaired, median, hooked spine 
posteriorly ; height of coronet one fourth of the length of the snout. 
Nuchal ridge high, with irregular granulose profile. Opercle with 
delicate, divergent striae. Pectoral arch with 3 widely separated 
tubercles, the lower the most prominent. Trunk 7-ridged ; all the 
B 
