MOHUSCA. 77 



101. Haliotis (Teinotis) asinina, lAnn. 



Hah. Port MoUe on coral-reef. 



A single young specimen was collected, having but five perfora- 

 tions open. The two nuclear whorls are fleshy pink and smooth, 

 and the radiating ridges are beset with fine granules alternately 

 turquoise-blue and scarlet. 



102. Dentalium javanum. 



Sowerbt/,Thes.Conch. vol. iii. p. 102, pi. 223. fig.l2 ; Conch. Icon. flg.l4. 



Hab. Java {Sowh.}; Malacca, coarse sand, 12 fras. (Cuming in 

 Brit. Mus.); Port Darwin, 8-12 fms., sand and mud {Gopping&r). 



This species is very nearly related to D. octogonum of Lamarck. 

 The eight ridges are conspicuously acute, the interstices being 

 flattish, and marked only with cross lines or strise of growth. The 

 colour of this shell is white, varying to pale green. 



103. Scutus unguis. 



Patella unguis, Linn. Syst. Nat. ed. 12, p. 1260 (part.) ; Hanley, Ipsa 

 lAnn. Conch, pi. 3. fig. 4. 



Hah. Flinders and Clairmont Islands, IT.E. Australia, 11 fms. 

 (Coppinger), also Thursday Island. 



For full synonymy of this species I would refer the reader to a 

 paper by the author on this genus in the 'Journal of Conchology,' vol. ii. 

 pp. 252-264. The animals from the above locality are yellowish or 

 buff, copiously blotched and, stained irregularly with blackish grey, 

 the sole of the foot being of a uniform buff tint. The shells are of 

 the same width (13 miUim.) ; but one of them is 25 millim. long, the 

 other only 23|, which gives to the former a more elongate appear- 

 ance. 



104. PissureUa jukesii. 



Reeve, Cmich. Icon. fig. 45 (only half-grown). 

 Juv. = F. flmbriata, Reeve, Conch. Icon. fig. 104. 



Hah. Port Darwin, N.W. Australia (Coppinger) ; Port Molle, 

 Queensland {Jukes). 



This species may be recognized by the elevated squamous character 

 of the radiating ridges, which are more or less tinted with pale rose. 

 In the young state the apex is more conical than in older shells, and 

 the foramen (as is usually the case in immature specimens of this 

 genus) is more central. 



105. Pissurella singaporensis. 



Reeve, Conch. Icon. figs. 100, 101. 



Hah. Port Molle, Queensland, coral-reef. Port Curtis beach, and 

 Port Darwin, N.W. Australia, 8-12 fms. (dead) {Coppinger) ; Singa- 

 pore (Reeve). 



This form is allied to F. ticaoniea, but may be separated on 



