UNTO.— INDEX. 



.«//■(«/««, Ratiuesque YIIJ. :J0 



Stiuu-ti, A,l,n,is (u,d Aw/as .... LIV. and LV. 27^1 



sub;iu,2ulatiis, Lea . . .'. LXV. 327 



sul-luhosus, Zc« LXIV. 321 



subovatus, Li-a LXXXV. 456 



suLovaiiii, Reeve XXXI. 1 G3 



subplaiius, Conrad XLVII. 2.")2 



subrostratus. Reeve (not Say) . . XVII. 78 



subrotundus, Lea XXVII., 137, and 



XXXVII. 201 



subtentus, % LXXIl. 370 



subtetragona, Michaud XXII. 9S 



subtortus, Baird and Adams . . LXXXVII. 46.5 



siibtrigonus, Sowerby LA^III. 202 



.<!uccisus, Zcfl XXXIII. 174 



sulcatiis, Lea XIV. 60 



mlcidens, Lamarck LXVIII. 346 



Suiuatrensis, Lea XXVIII. 142 



supei'bus, Lea LIX. 205 



Swinlioei, Reeve XLII. 232 



Swainsoni, Hanky LXXVI. 396 



Taitianus, Lea LXVII. 338 



Tauipicoensis, Lea LVII. 201 



Tavoyensis, Gould . . XIII. 40 



Tecomatensis, Lea LVII. 201 



tenuissimus, Lea XLIV. 240 



teres, Cournd XIX. 87 



testiidineus, Morelel XXII. 101 



tereiiuscidus, Philippi LXXV. 380 



Texasianus, Lea XL. 218 



Thwaitesii, Lea XXIII. 1U5 



Tin\\.^u.\en%\&, Crosse and Bebeatix XCVl. 522 



forsa, Rafine.sque LXXI. 863 



tortivus, Lea XXXVI. 103 



tortuosus, Sowerby LXX. 330 



tralmlis.VmmA LXXVIII. 406 



trape/oides, Lea V. 17 



triangularis, Barnes LXVII. 340 



triangulatus, Lea LXXX. 410 



triyoniis, Sowerby (not Lea) . . LXIV. 322 



trigonus, Lea LXXX VI. 459 



^v/w/ra, Benson (?) LXV. 331 



r/-oo.s/tw/-s, Reeve (not Lea) . . XXXVIII. 210 



Trooslensis, Lm LXXVIH. 406 



/;-««(v;to (Alasmodunta), Say . LXXVIII. 410 



//■«,/m^«*, Say LXXIV. 380 



truncatus, Swuinson LXXX\'. 



tuberculatus, Rajhu'siiue III. 



tabereidaUis,\\?,x\wi 1. 



/«i(';-cw/oj!(7, Valeneiennes . ... III. 



tumid ulus, Zc« LXXXIX. 



tumi.lus, Ret: XXIII. 



tur-idulus, Lea XVII. 



tur-idns, Zm III. 



Tin-loui, Payraudeau LXXI. 



umbrans. Lea XXXIV. 



umbrosus. Lea XXXI 11. 



undatus, Barnes LXXXVl. 



undulatns, &/y LXXVI. 



unduhitus, Barnes IV. 



Urugiiayensis, Lea LXXXIV. 



Valentianus, Soicerby XLI. 



Vanuxemeusis, Lea XXXIX. 



variabilis, Maton LXXIV. 



varicosus. Lea VIII. 



varicusa, Lamarck LI. 



Vauglianiauus, Lea LXI. 



velaris, Benson LXXll. 



vellicatus, Reeve XXII. 



ventricosa (Mya), Solauder. . . . XXIV. 



ventricosus, Barnes XLII I. 



venustus.ira LXIV. 



verecuudus, Gould XXV. 



Verreauxianus, Lea LXIX. 



verrucosus, Barnes III. 



verrucosus, Rafnesque I. 



WgwoutiXms, Bernardi .\XV. 



Viryiniana, Lamarck XXVI I. 



viridis, Rajiiiesqne . XLV. 



vittatus, Lea XVIIl. 



Von Buschea, Sowerby LI. 



V^ondembuschianus, Lea XCV'. 



Wardii, Ze« LXXX II. 



Wlifatleyanus, Lea XC. 



WiUunii", Lea LXXX VI 11. 



U ooihvardianus, Lea .\^ I. 



Tl'oohoichii, Morelet XXI I. 



Wyinannii, Lea LXXXIV. 



Wyne-ung-ensis, Lea LXVII, 



Zieglerianus, i«/ XXXVI. 



zicziic, Lea XXXIX. 



482 

 124 



130 

 244 

 S3 

 260 

 518 

 434 

 487 

 472 



