RIBBOU \. 



shouldered, with impned luttire; lip -ILdillv tlii.-l urn- 



ella truncately lui-trd. Length, 1 "> mill. 



I 



Gould's description wa> made from an iinmatiiiv ipecin 



I : AjQgaa -iibse.|iiently described it MS /,'. ////////,/. which I. 

 preoccupied by IVasc, the lallcr rliaiiir d to /,'. .!/- 



1J. MAINWAIMN..I \\ \. Xcvill. I'n fi-'ii rod. 



Section PlinsiNKI.l.A, Moid). 1 



R. CLATHRATA, A. Adams. PI. 57, fig. 7'.t. 



Solid, white, a little shining, clathratc hy longitudinal and spiral 

 ridges; whorls 9-10, slightly convex, the last whorl with a l>a.-al 



and rib below it; lip varicose, subchanneh d below. 

 Length, 12 mill. 



Red Sea, Singapore, P/n'ti/i/tun.-', A 



R. BICOLLARIS, Schwartz. PI. ">7, \\<r. 80. 



Solid, white, with 18-20 longitudinal, clathrate by spiral ri.i. 

 about 8 of the latter on the last whorl. Length, 7 mill. 



We--' 



R. FENESTRATA, Schwartz. PL 57, fig. 81. 



Solid, white, with 12-14 longitudinal, cros-ed by -piral lir.-- 

 which there are 5 on the last whorl, intersections nodo>e : lij> vari- 

 cose, the varix strongly transversely ridded. Leii-th. -\-:\ mill. 



/ 



R.CAN< KLLATA. I Mill. PL 57, figS. SI, !T). 82, 83. 



White, cancellated, with !(>-]* Icmgitndinal and 7-* spiral rib- 

 lei- on the last whorl; whorls convex, with deep siitmv, basr with 

 a sulcu-, below which are three spiral ri! _-th. ">"> mill. 



II.-' Indies. 



R. Plti/i/tju'iina, Pfr. (ii--. !>" i- a >ynoiiyni. 



Var. PULCHBA, C. P.. A.I. Fi_ 



White, with two distant yellowish bands. Cancellated. \\ iih 

 longitudinal and 7 spiral rid-es in the last wlmrl. thr int. 

 nodose, basal sculpture a< in the type. Len-lh, .":; mill. 



