513 REPORT— 18C3. 



aMe to report POTiromin": thrm. The first notice of the shells appoftT* in the 

 Proc Ac. Nnt. Sc. Philailcliihia, Dec. Isoit, pp. 'XM, 'Xi'J. Tlie new t])e(ie9 

 are descrilx-d in the ' Anuals and Magaziue of Nat. Hist.,' 1864, vols. xlii. and 

 xiv., as follows : — 

 A. N. H. Vol. XIII. 



1. 311. Ai^fhenothiprii* rillnm>r, n.ir. 1 living sp. and fragm. 



2. ,, Siilfinifa rnlviihis. 1 liviiisr "p. 



8. ,, Ti'//iiiti ( Pfronr/'iHlerma) (xhracra. 1 sp. 



4. 312. I'liiniiiwhifi (YAmpfiirhfftui) ref/ulan'it. Valves. 



6. „ Cii//isfii pollirinis. 1 s])., liviny: ( = C. prora, vnr.. teste Rve., C. I. f. 4fi), 

 & „ Ciillistu I'rpatiiio^a. var. ) purlin. Exti-eiuely atfiindant, livintr. Al-o 



Acapulco, Jrireff. (N'erv variable, yet always differing from the 

 typical Soutli American shell.-*. ) 



7. 313. Liocnidiion iipkiniim. E.vtremely abmidant, living. Ako La I'az; Aca- 

 pulco, Jen-ftf. 



Lncina fittf/uu/i.i. Extremely abundant, valves. 



?Vrei)fll4i iiiftafa. Valves ; verv rare. (An abeirant form.) Also Panama, 



C.li.Ad 

 Brt/tiphi/'i Kftimn. n.jr. Abundant: living among sea-weed, on Purpura 



plano^inra. Also Oalil'Drnia, Cimfier. 

 ?At;iii v(i*t(i. Kare : allied to Cif/ichtia. 

 IxchiwvliittiH ptiralMii.<. l{are ; living. 

 Isc/i/wc/tifun (rvar. ) prasiittitiig. 1 living sp. Possibly a form ofparal- 



ItchKochifon xerrattix. 1 living sp., like Elenentts, 

 XiiceUu pelt(iideg.= XaceVa, sp. ind.. Maz. Cat., no. 202. 

 AniKPd (^var. ) atrota. Interiiicdiate between P. discurs, Phil., and P, 

 Jloccatiu live. Also La I'az, Margarita Pay. 

 17. jj AcDuea xfrit/if/fita. Intermediate in characters and station between 



A. patina an<l A. meMi/eiica. Also Maryarita Bay. 

 G/i/p/iis xutiinmlii. Not uncommon ; living. 



Eiicoamid rarici/dta. ( Probably a subgenus of PhasianeUa.) Rare, dead. 

 Eiicoxniia {'rrfiriei/tita, var.) sub-itriata. Very rare. 

 Eucimmin pmwtafd. 1 sp. 

 Eiicosmia ci/cloKti>ma. 1 sp. 



IlapUicochliiit ojirh>phi>rem, n. g. (PRelated to Ethulia. ) Very rare, dead. 

 Xarica ajmin. 1 sp. 

 Eiitaariis fxircipicfit.f. 3 sp. 

 /o.«.«rt/-?M piinrx. 1 sp. 



Litorinn piit7nfa,= lAtorina, sp. ind., Maz. Cat., no. .^09. Abundant. 

 Zitnn'na (P/n'/ippii, var.) 2)enicillata. Like the W. Indian L. [zivzuc, var.) 



li/ieafd. Abimdant. 

 Itixiiia alholirnfa. 1 sp. 

 Fenelln cnt«taUinn. 1 sp. 



? iri/tlrohia cnmjmcta. May be a Barleeia. 1 sp. 

 Hi/dln rotumhita. 1 sp. 

 ?I)ia/a eledrinn. 1 sp. 



Acirm [teste A. Ad.] menei^fwide-t. 1 sp. • 



Ci/thita nsteridphild. Imbedded in a staur-fish, like StyUna. 1 living sp. 

 Bittium nitens. 1 sp. 



Manqelia guhdiaphnna. 1 sp. 



DriUin apprexsa. 1 sp. 



Ciffidra fiiscmiofata. Very rare. 



Obeli.icun rnrieqatus. 2 worn sp. Described fiom a iiesh Guavnutf 



shell, Mus. Cal. Ac. 

 (Oihuttomia) Evalen (Pfvixciilpta. 1 ep. 

 iO(ltmtomid) Evalea delicntida. 1 sp. 

 ChrymlUda amjusta. 1 sp. 



104 



