C U M I N G I A. 



II. 



Speties 7. (Fig. a, b, Mus. Brit.) 



iixtiiA (•()Ai;cr.\T.\. Cum. iestii /laini, rcgiilariler 

 ciincentrici' liratu ; inter liris teiiuissime radiatim 

 slrialil ; antici' siihquadrald, injlatd, postio' depresfd, 

 cvtitrartd, declivi, tul termimiiii DUirgiiiix vi'iitrdlis 

 iicuminaM. 



. C0NTi{.\CTED CuMiN(;i.\. Shell small, rofrularly 

 <'oiicentrifally ridged ; very finely radiatrly 

 striated between the ridges; anteriorly sub- 

 ijuadrate, inflated, posteriorly depres-sed. con- 

 tracted, sloped downward, acuminated at the end 

 of the ventral margin. 



Ki.-iiV. Proc. Zool. Soc, IS.'!;;. 



. riiilippines. 



Species 8. (Fig. », h, Mus. Brit.) 



CiMiNiiiA .\NTlLL.\nuM. Cum. tesU'i parrii, tcitiil, iniiintc 

 rer/iilwiter concentrice lamimda ; suboi'alA, vil .■'uh- 

 triijon/i ; postice subacumi iiatd. 



Tm: AXTii.i.K.s Cumingia Shell .small, thin, minutely re- 

 gularly concentrically laminated ; somewhat ovate, 

 or siibtrigonal ; posteriorly, rather acuminated. 



A. Adam.^. Proc. Zool. Soc, 1850. 



Ilab. West Indies. 



Species 9. (JIus. llargreaves.) 

 C'l'MlXGlA ELEOANS. Cum. testd parvd, obliqu'c subovatd, 

 eleganter a-ebre concenirice liratd; latere autico 

 brevidsculo, rotunda, inflato ; latere postico sid)- 

 (iiii/uhito, ante anyuluiii contracto. 

 The elegant Cumingia. Shell small, obliquely sub- 

 ovate, elegantly closely concentrically ridged ; 

 anterior side rather short, rounded, inflated ; pos- 

 terior side rather angular, contracted in front of 



T/u/illa huiuUom, H. Ac 

 Ilah. Australia. 



'i'he wanl of (level. jped lateral teeth in either valve 

 has caused the separation of this and other species from 

 the genus ; and in replacing it we are obliged to apply 

 a new specific name, that of lamellosa being previously 

 occu])ied in this genus. 



(Mus. Brit. 



-/'"' 



lli,l,i. 



C I'MIXiiiAVExrinciisA. Ciiiii. Ii'.-itd sn/id,} 



fasciatd, iiiiiiiiil.^sii,,:' strlntd, lir,,-!, i„jl,it<} ; li,l,n 

 antico rdluiidii, milricusi: .■ laten lu.slin. annniimfo 

 dediri. 



The VENTiticosK C'imingia. Shell .solid, banded witl 

 pale rose, very minutely striated, short, inllati-d 

 anterior side rounded, veutricose ; posterior siib 

 acuminated, sloped downward. 



SOWERBV. 



ifab. Probably Chili. 



Much shorter and more inflated than Cuminr/ii. 



Sjiecics 11. (Mvis. Brit.) 

 ('U.MINOIA Gi:ani>is. Cniii. testd solidd, idbd, opi 



mb- 



compressd, dilatatd ; latere antico hrerivscido, ro- 

 tundo ; latere postico rostrato, comjiresso, raid'- 

 declivi, acuminato. 



The lauoe Cu.mingia. Shell solid, white, opaque, sub- 

 compressed, dilated ; anterior side rather .short, 

 rounded ; posterior side beaked, compressed, much 

 sloped, acuminated. 



nESH.\rEs. 



I/ab. Chili. 



A species of very dilated and rather flattened form, 

 Init quite possibly a variety of Caniiiigia mutica. 



Species 12. (Mus. llargreaves.) 



CujirNGiA Hai 

 raid, loih-i 



REAVESii. Cnni. testd parvd, sidiquad- 

 latere antico brerissiwo, dediri, obtuso. 



August, 187u. 



