428 PROCEEDINGS OP THE ACADEMY OF [Oct., 



of front rim of orbit. Interorbital space narrow, forming an isosceles 

 triangle, angle formed about f an eye-diameter anterior to eye. 



Gill-opening about 2 in eye, vertical, and laterally superior on nape 

 near nuchal keel. 



Coronet high, its upper surface slightly concave, with 2 lateral 

 tubercles, and an elevated prominence springing from ridge in front. 

 Below latter, on each side of head, a round tubercle. A slight tren- 

 chant keel at f.'ont of interorbital space longitudinally, and each side 

 of triangle separated from this though gradually springing up into a 

 high slender bony process above posterior margin of eye. A blunt 

 postorbital tubercle near eye. Shoulder-girdle with 3 large round 

 tubercles. A few fine radiating striae on opercle. From each supra- 

 orbital process a rather long slender cutaneous filament, 1 from anterior 

 process of coronet and 1 from each posterior process. Body-rings 

 mostly with concave surfaces, without spines, though ridges rather 

 minutely asperous and forming slight tubercles on those on trunk 

 more or less, though none distinctly enlarged at intervals. On tail 

 ridges are more or less obsolete, except those forming longitudinal 

 edges. 



Fins rather small, with simple rays. Dorsal with long base, begin- 

 ning on posterior portion of ninth ring, and then extending on to third 

 caudal ring near its posterior margin. Anal small, short, in first ring 

 of tail. Pectoral with a moderately broad base, rays rather short. 

 Vent a little before anal. 



Color in alcohol brown, more or less uniform, or darker mottlings 

 within each square evidently result of preservation. Opercular 

 region with some round blackish spots. However upper surface of 

 tail is marked by about a dozen transverse saddles, most distinct on 

 dorsal surface. Dorsal rather dusky. 



Length, measured from tip of coronet to tip of extended tail, 9 inches. 



Type, No. 33,122, A. N. 8. P. Victoria. 



Also another example in poor preservation. It has about 28 dorsal 

 rays, and has a similar long tail and comparatively moderately deep 

 trunk. Still smaller examples agree, though 2 at present are whitish 

 with minute brownish dots, visible only under a lens. 



This species is related to Hippocampus abdominalis Lesson, but 

 differs at once in the longer snout and more contracted depth. Blocker 

 has roughly figured the present species as H. ahdominalis in Verh. 

 Kon. Ak. Wetensch., Amsterdam (Visch. Van Diemensl.), II, 1855 

 p. 28, PI., fig. 4, from Tasmania. 



(Named for Dr. Pieter van Bleeker, who studied the fishes of Tas- 

 mania.) 



