2 Dr. P. P. Carpenter on new Forms of Mulluskt 



2. Solemya valvulus. 



S. f.psta rninore, (enuissima, diaphana, vix testacea, comea, pallldior*, 

 Imeis tenuibns, distantibus, iuscis, radiatim ornata ; postice teiiui- 

 ter radiatim striata; tumente, satis elongata, marginibus antit^ et 

 postico regulariter excurvatis ; umbonibus vix conspicuis ; line?a 

 aiiticis divaricantibus, extus parentibus, intus lacunain cartila- 

 gineam defiiiientibus ; cardine edentulo ; llgamento postice elon- 

 gato, antice curto, latiore, bifiircato ; cicatricibus adductorura 

 subrotundatis. Long. '85, lat. •25, alt. '14 poll. 



3. Tellina {Peron(Eoderma) ocliracea. 



T. testa majore, parum inaequilaterali, tenui, satis planata ; carneo- 

 ochracea, intus intensiore ; Isevi, nitida, marginem versus striis 

 incrementi ; postice vix radiatim striatula; ventraliter autice 

 valde excurvata, postice vix angulata ; marginibus dorsalibus ob- 

 tuse angulatis, umbonibus conspicuis ; ligameuto tenui et cartila- 

 gine subinternis ; nymphis intortis : dent. card, utriusque valvee ii., 

 quarum i. bifidus ; dent. lat. valvse dextrse ii.; sinu pallii irregula- 

 riter ovali, per duos trientes interstitii porrecto ; cicatr. adduct. 

 subovatis, nitidissimis. Long. 1*9, lat. 1*4, alt. '44 poll. 



4. Psammobia {^. Amphichcena) regularis. 



P. testa minore, regulariter ovali, subsequilaterali ; violacea, jAiis 

 minusve radiata sen maculata ; Isevi, striolis incrementi ornata ; 

 cpidermide tenui, flavido-olivacea induta, postice rugulosa ; mar- 

 gmibus undique regulariter excurvatis ; umbonibus vix j)rojectis ; 

 ligameuto conspicuo : intus dent. card, ii.-i., hand bifidis ; cicatr. 

 adduct. postica rotundata, antica ovali ; sinu pallii eloiigato, baud 

 incurvato, per duos trientes interstitii porrecto. Long. 1"05, lat. 'o, 

 alt. '26 poll. 



5. Callista pollicaris. 



C testa magna, ventricosa, solidiore ; epidermide tenuissima induta; 

 sordide albida, umbonibus rufo-fuscis ; (t. adolesceuto) punctuli.4 

 erebris rufo-fuscis, et tseniis panels circa nympbas ornata ; Isev*, 

 striis incrementi exceptis ; postice, et paululum antice, quasi pol- 

 lice impresso notata ; latiore, antice producta, sed baud angulata ; 

 postice unda depressa, supra nympbas radiante, inter costas dua« 

 obsoletas sinuante, margine subtruncato ; marginibus ventraU 

 regulariter excurvato, dorsali rectiore ; lunula elongata, linea im- 

 j»ressa definita, medio tumente, postice flaccida : intus Candida ; 

 dent. card, normalibus ; dente laterali valvse dextrse postico, vah\c 

 sinistrse antico, usque ad extremitatem lunulae porrecto ; cicacr- 

 adduct. subrotundatis ; sinu pallii magno, rotuiulato, usque ad 

 madium interstitii porrecto. Long. 2'58, lat. 2*25, alt. 1'43 poll. 



Figured by IMr. Reeve (Conch, f. 45) as " Dione prora, var.*' 

 The above diagnosis proves it to be a distinct and (considenntj 

 the general similarity of the thin, colourless, intiated group) a 

 ^'ell-maiked species. 



210 



