OSTR.^, A. 



cp.quatoriali.% D'Orh XVIII. 



affinis, Sowerhi/ XXIX. 



Algoensis, Sowerhy X X A' I . 



Angasii, Sowerhi/ XIII. 



angulata, Lamarck \'l\\. 



Arakanensis, Soioerbi/ X X X 1 1 1 . 



ariorsa, Chein. (parasitica) II. 



attennata,, Soicerbi/ XXI. 



auriculata, Sowerby XXV. 



Australis, Lamarck XII. 



Barclayana, Sowerhy XXX. 



Belcheri, /Sojcerfty VII. 



bicolor, //rtji/e?/ XXIII. 



Boreali.% GoiM \"I. 



callochroa, lianlcy IV. 



Canadensis, Lamarck \'l. 



cerata, Sowerhy XXVIII. 



circumsHta, Gou/rf XX. 



Chemnitzii, Hanky XX. 



Chiloensis, Ms. B. M XV. 



cochlear, Poll XX. 



Columbiensis, Hanley \'II. 



conchapliila, Carpenter XXVIII. 



coi-nucopia, Chenin XVI. 



crenulifora, Sowerhy XXVI I. 



cra«su, Cliem. (rostralis) X. 



cristii-galli, Z/«H(PHS XI. 



cucwWmn, Deshayes II., XXXI. 



cuculluta, .fforra XVI. 



cymhxioTmis, Sowerhy XXIX. 



Cyrnusii, Payradan XVII. 



denticulata, Bo7-n IX. 



depressa, Philippi XXI 1 1. 



discoidea, Gould XIII. 



c?onV/c/i'a, Lamarck (frons) XIX. 



dubia, Sowerhy XXXIII. 



eduli.s, ZtnMccifS V. 



erucella, Lamk. (frons) XIX. 



exalhida, Gmel. edulis, Yoiunj ■'.. V. 



Floridensis, Soii'c;% XXIX. 



folium, Gviel XVII I. 



Forskali, Chem X \' I. 



frons, Zinnreus XIX. 



/itsca, Lamk. (sinensis) III. 



gallMia, Lamk. (Rhizophora) ... IX. 



jr(iZ^«.«, Valenciennes XII. 



glomerata, Gould XXII. 



Guiueensis, i)««for XXVI. 



/"'/'/'"/""■'t Lamarck V. 



hyotis, Linnaeus IV. 



imbricata, Liinik XVII. 



inajqiiivalvis, .S'(((c,'r/»/ X.XXII. 



iuermis, Sowerhy XXVIII. 



iridescens, CxTa.y |. 



//«//crt, Desli. (coclih-ar) XX. 



lahrella, Lamk XVIII. 



! lacorans, //<;«/,y/ XXII. 



lactca, Sowerhy XXI. 



I lamellosa, /M../,/ XXIII. 



I lentiginosa, Sowtrhy XX I \'. 



lima, Sowerhy XX. 



/iVrtafc/Za, Lamk. ( frons) XIX. 



lugubris, Sowerhy XX\'I. 



lurida. Carpenter IX. 



megodon, llunhy XII. 



Mexicana, Sowerhy .X\'I. 



morda.x, (7oi/W X\'. 



multico.stata, Sowerhy 



multiradiata, Soinrhy 



mullistriata 



mytiloides, iMinarck 



nigromarginata, Sowerhy .. 

 nobilis, Sowerhy 



obc 



rrh>, 



palmipes, ,Vr<iCi7/i// 



parasitira, Tiirlon 



parasitica, Gmel in 



j pes-tigris, Ifaiiliy 



, perraolli.s, .V()/r(//y// 



plioata. Ch,w„itc'. 



plicatula, Giiielin 



pra;adaiiiitica, Iii>lton 



Prevostii, Sowerhy 



prismatica, Gray 



piulrhana, D'Orb 



jiy.xidata .4(/ams IX. 



qnt'Tcma., Sowerhy XIX. 



radi.vc, Sorrerhy XV. 



reuiibrmis, Sowerhy XXIV 



retusa, Pta^e XIX. 



Thv/.oii\\ovx, Giiildiriy IX. 



I rosacea, Chini XX. 



j rostralis, Za)//«rc/.- X. 



j rostrata, Clmiinit: VI. 



; ruia, Lamarel: XII. 



XXV. 

 XXV. 

 XXIX. 



II. 



XXXIII 



XXXII. 



XXXIIl, 



X. 



XXIV. 



V. 



II.. XIII 



XXX. 



X. 



XXVIl. 



XXVII. 



ill. 



XXXIIL 



I. 



II.. XIII. 



