MoLU'SCA, I. SMITH. '.i:i 



obtained. Although originallv described us from ('ape Illanco. West Africa, it seems 

 verv likelv that this Ideality was incorrect, and the ('ape Blanco mav have been the 

 prominence with that name mi the east coast of Patagonia. This seems r<> lie probable, 

 since I have not noticed anv other record of its occurrence on the West African 

 coas.t. Moreover, I'etit gave the loealitv "Cape Saint Thomas. Brazil.' and now il has 

 been collected still further SOUth, west of the Falkland Islands. 



Most of these specimens are marked with somewhat interrupted, spiral, reddish, 



broad lines, aliout six on the hack of the body-whorl. The upper ends of the varices 

 are so much hooked that thev curve over and touch the whorls above. 



5. CuspidfH'i.ct ( ( 'i/i'i/ /nii/i/i/} siinilliina, n. sp. N., p. 104. 



(i. An'ii (Ai/iiiliini} I'lu'ii/iiit :'/ . 1'hilippi. 



For synonymy and references see Lamv. .loiirn. de Conch.. l'.)()7. vol. LY., 

 p. '27-2. 



Station MS, West of Falkland Islands : lL'f> fathoms. 



Onlv a single dead valve obtained. It agrees very closely with J. </'IH'/>!I/II>/!, 

 Kobelt, from the West Indies. This species, according to Lamy, is the same as 

 rln'iiiiiitzi. Phil. Its known range is from the West Indies to South Brazil, and 

 consequently 1 am doubtful whether this valve really came from Station MS ( = II.Y. 1). 

 but think it more likely it occurred at Station 4'2 (= II. Y. 2) off Hio de Janeiro. 



7. ( 'nriliiiiii di lii'iitiduin, n. sp. PL II, h'^. ( J. 



Shell roundish, a little inequilateral, longer than high. thin, grevish white, with 

 obscure reddish markings; radiating costse fine, about 38 in number, not prominent, 

 those down the middle portion of the valves slightly rounded, with a series of minute 

 tubercles down the .middle of each of them, almost three times as broad as the inter- 

 vening grooves. Eight to ten of the cost re on the posterior side are ornamented with 

 distant prominent prickles, and an equal number of ribs in front exhibit prickles, but 

 not quite so strong as those behind; lunular area lanceolate, smooth, the hinge- 

 margin in both valves being rertexed in front of the umbones, which are smooth 

 at the tip and contiguous; interior of the valves whitish, but faintly tinted with 

 pale red or yellow towards the umbones, finely sulcate radiately ; hinge normal, 

 delicate. 



Length. _'_' mm. : height, L'O ; diameter, 14. 



Station MS. west of Falkland Islands: 1 _':") fathoms. 



This species probably attains much larger dimensions than those given above. 

 Young shells of < '. muricatum, Linn., which occur at the West Indies and along the 

 Brazilian coast as far south as Uio de Janeiro, must be rather like the present species. 

 Their eostre. however, would be more elevated, and the tubercles upon them are 

 attached to the sides and not down the middle. 



VOL. 11. n 



