Total length in millimetres ... 
Head in total length ... 
Head in head and trunk 
Head and trunk in total 
Head and trunk in tail 
Height in head 
Snout in head 
Eye in head ... 
Egg-pouch in tail 
Body rings 
Caudal rings 
Dorsal begins on ring ‘No. 
Dorsal stands on (number of 
rings) 
Pouch stands | on (number of 
rings) 
Dorsal rays 
Pectoral rays .. 
Caudal rays 
PISCES Ei5 
C D EK F * 
Male |Female| Male |Female| Male |Female|Female 
209 224 185 192 173 i184 108 
7.4 6.5 7.4 fos! 1(e3) 6.8 8.3 
2.6 2.6 2.8 PACT 1.9 3.0 3.2 
gen D5) 2.6 Oeil 2.7 20 2.5 
Wey 5 1.6 UAH 1.6 1.5 ais, 
2.8 6.8 3.9 2.6 3.8 3.4 2.6 
yi 1.6 16 1.6 iley/ | 1.6 Asi 
7.0 8.5 8.3 8.6 7.6 9.0 6.5 
5.1 see 5.0 — 5.0 —_— _ 
18 18 20 19 19 20 18 
49 49 51 48 50 51 42 
iL 17 17 iy 16 17 14 
10 10 ial 11 11 ill 10 
12 — 12 — 12 —_— — 
39 37 40 Sif 38 38 38 
13 12 13 12 ats} ils! 12 
8 8 tf 8 8 8 6 
*The first six columns refer to S. norae ; 
the last one to S. blainvillianus. 
HIPPOCAMPUS Rafinesque, 1810. 
HIPPOCAMPUS ABDOMINALIS Lesson. 
pl. iii., 
MD: 39: P18 
SEAHORSE. 
Plate: XO DEE 
Hippocampus abdominalis Lesson, in Ferussae. Bull. Sci. Nat. 
xi., 1827, p. 127, Bleeker, Verh. Akad. Wet. Amsterd. ii., 
1854, p. 28, fig. 4. Kaup. Cat. Lophb. Brit. Mus., 1856, p. 17, 
fig. 3 (head). 
Stations 25, 28, 
Rings 11 + 49 — 60. 
30, 65. 
Snout long, equal to the post-orbital portion of the head, the 
supraorbital ridges rise together abruptly at the base of the 
snout, and diverging form a simple spine over each eye, pointed 
outwards and backwards and terminating in a short filament; 
coronet low compressed, with a median filament in front and 
two behind placed on low knobs. 
Body very deep, the depth at 
the tenth ring being two and a third times the length of the 
snout; the spines are represented by low knobs slightly enlarged 
below the dorsal, a filament on the dorsal knob of the third body 
ring. 
