102 THE VOYAGE OF H.M.S. CHALLENGER. 



Tellina (Angulus) valtonis, Hauley. 



Tellina vnUonis, Hanley, Proc. Zool. Soc. Lond., 1844, p. 143. 

 Tellina valtonis, Hauley, in Sowerby's Thesaurus, vol. i. p. 283, pi. Ivii. fig. 68. 

 Tellina valtonis, Sowerby, Conch. Icon., vol. xvii. fig. 82 (narrow var.). 

 Tellina (Awjulus) valtonis, Eomer, Monogr. Conch. -Cab., ed. 2, p. 159. 



Ha.bitat. — Levuka, Fiji Islands, in shallow water. 



The locality of this species has not previously been recorded. The pallial sinus is 

 very large, reaching almost to the anterior scar. The line circumscribing it at first rises 

 some distance from the lower end of the hinder cicatrix, then descends obliquely and 

 more or less rectilinearly below the front scar, and finally falls subperpendicularly into 

 the pallial line beneath. The single specimen in the national collection is of a very pale 

 pink tint, whilst that obtained by the Challenger is very much deeper in tone, but the 

 pale rays at the posterior end are more conspicuous in the former than the latter. 



Tellina verncdis of Hanley is closely allied to this species, being similarly sculptured 

 and very like in colour, except that the posterior pale rays are wanting. It is, however, 

 broader at the anterior end, and less acuminate behind. The hinge and pallial sinus are 

 the same. 



Tellina (Angulus) lux, Hanley, var. ■ 



Tellina Tux, Hanley, Proc. Zool. Soc. Lond., 1844, p. 140. 



Tellina lux, Hanley, Sowerby's Thesaurus, vol. i. p. 288, pi. Ivii. fig. 71. 



Tellina lux, Sowerby, Conch. Icon., vol. xvii. fig. 286. 



Tellina {Angulus) lux, H. and A. Adams, Genera Eec. Moll., vol. ii. p. 397. 



Tellina {Angulus) lux, Romer, Conch. -Cab., ed. 2, p. 159. 



Habitat. — Station 189, Arafura Sea, in 25 to 29 fathoms, and Torres Strait, in 8 to 

 1 1 fathoms (Challenger) ; Philippine Islands (Cuming). 



The shells from the first two localities are not quite identical in fonn or colour with 

 that figured Ijy Hanley, but still, I have no doubt, belong to this species. The front 

 dorsal slope is not quite so oblique, the j)osterior scarcely so concave, and the hinder side- 

 margin is rather more arcuate. They are of a pinkish-white tint, with a pale pink ray 

 posteriorly. Tellina valtonis is very closely related to this species, having the same 

 hinge-dentition and pallial sinus, and distinguished principally by a slight difference of 

 form atj^the hinder extremity. 



Tellina [Anyulus) natalensis, Krauss. 



Tellina natalensis, Krauss, Siidafr. Moll., p. 3. 

 Tellina natalensis, Philippi, Abbild., vol. ii. p. 91, pi. iv. fig. 4. 

 Tellina natalensis, Sowerby, Conch. Icon., vol. xvii. fig. 280, a, b. 

 Tellina natalensis, Romer, Monogr. Conch. -Cab., ed. 2, p. 161. 



Habitat. — Simon's Bay, Cape of Good Hope, in 1 5 to 20 fathoms 



