Manchester Memoirs, Vol. xlii. (1898), No. 4. 33 



A great many examples from the two above-mentioned 

 localities. 



(ycvt^Xioc, generative, from its frequency.) 



Gari erasmia, sp. nov. 



(PI. 2, f 3.) 



G. testa parvayOblonga.cBquivalvi, fere cequilaterali^valvis 

 dorsaliter leniter declivibus, antice oblongis, sicut in latere 

 posticOy margine ventrali longo] convexiusculo, ferd recto, 

 superficie violacea vel roseo-ochracea, arctissime concentrice 

 costiilata, interstitiis postice fere Icevibus, a medio fere ad 

 latus anticum alvearibus, costulis crenelliferis, antice 

 crassigranulosis et undulosis, bis alternatim dispositis^ 

 quadratulis, intus parum nitente, v iolacea vel rosea. 



Alt. 5, long. 9, diam. 3 mm., sp. maj. 



Hab. Gais (or Kais) Island ; 14 fathoms, broken rock 

 and coral sand. 



One of the smallest, if not the least, of the genus, but 

 none the less beautiful. Two specimens are before us. 

 Of these, the larger, pale violet in colour, is of an oblong 

 shape, rounded off anteriorly and posteriorly, slightly 

 convex, but running almost straight at the ventral margin. 

 The ornamentation is peculiar. Closely concentrically 

 costulate, these ribs posteriorly are almost smooth, as are 

 the interstices, towards the middle of each valve the costae 

 become crenelliferous, the interstices honeycombed, and, 

 at the anterior margin, they are noduled and granuled, in 

 an alternate manner, assuming a diamond pattern. The 

 smaller example, of a rosy-ochre, is much smoother 

 posteriorly and in the middle, but has the same character 

 of ornamentation in a lesser degree. The presence of 

 Lepralice oy\ the larger specimen would seem to denote its 

 mature condition, I may add that Gari Schum., 18 17, 

 has precedence one year over Psammobia Lm., 18 18. 



(fpa<T/L((oc, lovely.) 



