io8 



1. D. 1619. Tailrings 3337- 



a. Tubercles on cristae developed into* long, 

 slender spines. Occipital keel behind coronet 

 with two distinct spines. 



at. Snout equal to postorbital part of head. H. spiuosissimus p. 109. 

 /3. Snout about one eye-diameter longer than 



postorbital part of head . H. histrix p. 109. 



b. Tubercles on cristae not developed into long 

 slender spines. Occipital keel behind coronet 



rough, but without distinct spines H. kuda p. no. 



2. D. 19 21. Tailrings 38 42 H. trimaculatiis p. 112. 



III. D. 13 14. 10 bodyrings. Coronet high H. coronatus p. 113. 



i. Hippocampus abdominalis Less. 



Hippocampus abdominalis Lesson in: Ferussac, Bull. Sc. Nat. XI. 1827, p. 127. 

 Hippocampus abdominalis Bleeker, Over eenige visschen van van Diemensland, 



Verh. Kon. Akad. Amsterdam II. 1855, P- 28. 



Hippocampus abdominalis Kaup, Cat. Lophobranch. Fish, 1856, p. 17. 

 Hippocampus abdominalis Giinther, Cat. Brit. Mus. VIII. 1870, p. 119. 

 Hippocampus abdominalis Dumeril, Hist. nat. Poissons II. 1870, p. 524. 

 Hippocampus abdominalis Macleay, Descr. Cat. Austral. Fish. II. 1881, p. 240 



(separ. edit.). 



Hippocampus abdominalis Duncker, in: Fauna Slid west Australiens II. 1909^3.247. 

 Hippocamptts abdominalis Me Culloch, Zool. Results "Endeavour" Commonwealth 



Australia, Fisheries I. 1911, p. 29. 



Hippocampus graciliformis Me Culloch, ibid. p. 29. / 



Hippocampus abdominalis Me Culloch, Biol. Results "Endeavour", Commonwealth 



Australia, Fisheries II. part 3, 1914, p. 94 and IV. part 4, 1916, p. 181. 

 Hippocampus abdominalis Waite & Hale, Rec. South Austr. Mus. I. N. 4, 



1921, p. 319. 



D.2/ 31; A.4; P. 15 18; Rings 12+4649. 



Head 1.5 in trunk. Snout straight, cylindrical, equal to post- 

 orbital part of head. Eye 7.3 8.3. Coronet low, without distinct 

 tubercles, forming a longitudinal crest. Supra-orbital tubercles 

 large, granular, as well as the tubercle in front of the coronet, 

 surmounted by a filament (absent in the specimen examined, 

 probably lost). Operculum with distinct radiating ridges; occi- 

 pital keel behind coronet without spines. With exception of 

 those on the head the tubercles are very feebly developed. 

 Cristae rugose. Height of the ridge, which carries the dorsal, 

 equal to half diameter of eye. Dorsal on io tb I2th body-ring 

 and on first to third tailring. Colour of alcohol specimen 

 yellowish brown. Tail with black bands. Black spots on head 

 and body. Length 250 mm. [A specimen of BLEEKER'S col- 

 lection in the Zoological Museum of Amsterdam seen by us]. 



