MITRULARIA. 139 



M. TECTUM-SiNENSE, Lam. PI. 43, figs. 71-74. 



Whitish, radiatel}' striated or nearlj- smooth, with concentric 

 lameUie, free at the edges. Diam. 1 inch. 



Fhilippines. 



The well-known " Chinaman's hat." M. scabies, Reeve (fig. 74), 

 is a s3'non3'm, and connects with varieties of M. equestris. 



M. RUGULOSA, Dunker (unfigured). Swain^s Id. 



M. LACTUCACEA, Rocliebrune (nnfigured). Senegamhia. 



INDEX AND SYNONYMY 



CALYPTR^ID^. 



Aberrans (Calyptriea), C. B. Ad. Panama Shells, 330. 



= Anomia. 

 Acrocnlia, Phillips. Pal;i?oz. Foss., 1841. 



= Platyceras, Conrad, . . . . . . .107 



Actita, Fischer de "Waldheim. Advers. Zool., iii, 1825. 



= Capnlus, Montf. ....... 



Aculeata (Calyptrtea), Reeve. Conch. Icon., xi, fig. 31 a, b 



1858. = Mitrnlaria eqnestris, Linn., var. 

 Aculeata (Patella), Gmel. Syst. Nat., 3693, .112,127 

 Acuta (Crepidula), H. C. Lea. Am .Jour. Sci., 1 ser. xlii 



108, t. 1, f. 4. = C. convexa. Say. 

 Acutus (Hipponj-x), Quo}'. To}'. de I'Astr., iii, pi. 72, 35 



36. = H. australis, Quoy, ..... 

 Adarasii (Calyptriea), Reeve. Conch. Icon., xi, sp. 7, 1858 



= Mitrularia equestris, Linn. ..... 



Addisonia, Dall., 1882, 



Adolpluvi (Crepidula, Lesson. Vo}'. de la Coq., ii, 391. 



= C. dilatata (Crepidula), Lam. .... 

 Adspersa (Crepidula), Dunker. Mollusca Guineensis, 34 



1853, 



Adunca (Calyptrtea), Sowb, Tank. Cat., app. 7, Xo. 82^ 



1825, . ' 128 



Albida (Patella), Donovan. Brit. Shells, iv, t. 129. 



:= Calypt. Sinensis, Linn. 120 



105 



138 

 129 



136 



137 

 107 



127 



125 



129 



