018 REPORT — 1863. 



able to report concerning them. The first notice of the shells appeajs in the 

 Proc. Ac. Nat. Sc. Philadelphia, Dee. 1859, pp. 331, 332. The new species 

 are descrihed in the ' Annals and Magazine of Nat. Hist.,' 1864, vols. xili. and 

 xiv., as foUows : — 



A.N.H. VoLXIII. 

 Sp. Page. 



1. 311. Asthenothcsj-us mllomr, n.g. 1 living sp. and fragm, 



2. „ SoUmya valvuh<s. 1 living sp. 



3. „ Tellina (Peronedoderma) ochracea. 1 sp. 



4. 312. Psammohia (^ Amphichcena) regularis. Valves. 



5. „ Callista pollicaris. 1 sp., living (= C^>-o?-a, var., teste Eve., C. I. f. 45). 



6. „ Callista (?pannosa, var.) puella. Extremely ahimdant, living. Also 



Acapulco, Jeioett. ("Very variable, yet always differing from the 

 typical South American sheila.) 



7. 313. Liocardium apicinum. Extremely ahimdant, living. Also La Paz ; Aca- 

 pUlco, Jewett. 



Imdna lingualis. Extremely ahimdant, valves. 



? Crenella inflata. Valves ; very rare. (An aberrant form.) Also Panama, 

 C.B.Ad. 



JBryophila setosa, n.g. Abmidant ; living among sea- weed, on Pur2nira 

 planospira. Also California, Cooper. 



?Atys casta. Rare : allied to Cylichna. 



Isclmochiton parallelus. Rare ; living. 



Ischnochiton (?var.) prasinatus. 1 living sp. Possibly a form oi paral- 

 lelus. 



Ischnochiton serratus. 1 living sp., like Elenensis. 



Nacella peltoides, — Nacella, sp. ind., Maz. Cat., no. 202. 



Acmcsa (?var.) atrata. Intermediate betiveen P. discors, Phil., and P, 

 floccata, Rve. Also La Paz, Margarita Bay. 



Acmcsa stricjillata. Intermediate in chfirncters and station between 

 A. patina and A. mesoletica. Also Mary'arita Baj'. 



Glyphis saiurnalis. Not uncommon ; living. 



Eiicosmia variegata. (Probably a subgenus of Phasiaiiella.') Rare, dead. 



Eiicosmia (?variegata,Ya,v.) suhstriata. Very rare. 



Eucosmia punctata. 1 sp. 



Eucosmia cyclostoma. 1 sp. 



Haphcochlias cyclophoreus, n. g. (PRelated to Eihalia. ) Very rare, dead. 



Narica aperta. 1 sp. 



Fossarus parcipictus. 3 sp. 



Fossarus p^irus. 1 sp. 



Litorinapullata,= Litorina, sp. ind., Maz. Cat., no. 399. Abundant. 



Litorina {Philippii, var.) penicillata. Like the W. Indian L. {ziczuc, var.) 

 lineata. Abundant. 



Pissoa alholirata. 1 sp. 



Fenella crystallina. 1 sp. 



?Hydrobia compacta. May be a Sarleeia. 1 sp. 



Syala rotundata. 1 sp. 



?I)iala electrina. 1 sp. 



Acirsa [teste A. Ad.] menesthmdes. 1 sp. 



Ci/thna asteriaphila. Imbedded in a star-fish, like Stylina. 1 living sp. 



Bittium nitens. 1 sp. 



Mangelia mhdiaphana. 1 sp. 



Drillia appressa. 1 sp. 



Cithara fusconotata. Very rare. 



Obeliscus variegatiis. 2 worn sp. Described Horn a fi;esh Guaymas 



shell, Mus. Cal. Ac. 

 (Odostomia) EvaJea aqniscidpta. 1 sp, 

 ( Odostomia) EvaJea delicatula. 1 sp. 

 ClirysalUda angiista. 1 sp. 



104 



