288 



ia preserved, but, as .seon in tlio rust ol' tlio iiitcriiir, (l()oply iiiiprcsscd. 

 The outer side of tlio body-wlior-l is gently ciiiivex, and slopiii;f te tlio 

 cdfi;e of the umliiliciis at an aii;j;l(' of from 110'-' to 70" with the phiiic of 

 the flat side of the shell. The lici;j:;iit of tlu^ apertniM^ appears to ho a 

 little less than half the whole width of the siicll. The imI^k of tho 

 umbilicus is aeutcly ro\iiide(l, not aeutt^ as in /)/. J<Jiiiiiit)ttsi and J\/. (t(lini». 

 The inner side of the whorls in the unibiiieus is ;^i'ntly convex, and sonic- 

 what slopin;^ ; the ed;j;e t^xpiised in slaireasc form to the a[)ex. i?urlaco 

 unknown, but most probably finely striat('<l. 



In a specimen l^! lines across, consisting of three eomplctc whorls, the 

 outc^'r whorl is 4 linos wide; liei[;;ht of the aj)erturo lines; width of tho 

 umbilicus b^ linos. 



In a specimen li.'! linos wide, eonsistinj; of four whorls, tho outer whorl 

 ia i' lines wide ; aperture and uniliilieus not exposed. 



The proportions of this speiaes are v(M-y nearly those of M. <:n-iiii/iilii, 

 and, in tlu^ condition of easts, the two cannot lii^ distin;i;iiished IVoni each 

 other. When the shell is jut'served, the dill'ei-ences l>econi<' at ouco 

 apparent. 



In M. (Tcmilata the umbilicus is narrower ; ilie ('(Il'i^ Ix^ars a ('renu- 

 lated band ; the inner side; of the whorl, in the mubilieiis tkit ; and tho 

 height of tho aperture is a little more than half th(^ whole width of tho 

 shell. 



The operculum found with it has no nniseular ]ii-oeesM, as in M. ./jui/mii. 



This species occurs also in a somewhat lowm- ;^eolo;^ieal position than 

 jm. crcniilata. 



J.KCidUy and /loriitdlidii. — I'', (J, 1[, l'oi-t a,ux Choix, Table Head, 

 Caj)e Norman, and fistolet Jiay, Newfoundland ; (^lehec group. 



Collector. — J. llichardson. 



MaCLUKEA 1FFINI8. (N. Sp.) 



Fig. 224. 

 Fig. i2i.— Maclurea afflniii, a, the tpire ; *, seolion. 



