HELTX §. 122. 303 



arcuato. — Diam. maj. 30, min. 23, alt. 12 mill. (Mus. Univers. 

 Monac.) 



Helix Costaricensis Roth in litt. 

 — — Pfr. Novit. conch. T. p. 78. n. 132. t. 21. 



f. IS — 17. 



Habitat prope Costarica (Dr. M. Wagner). 



1941. Scheepmakeri Pfr. [Ch. ed. nov. III. p. 351. 



t. 135. f. 5—7. — Thersites Pf7\ Vers. p. 141.) . Mon.III. p. 254. 



1942. parmula Brod. (Coll. 1031. — Rv. n. 120. t. 28. 



— Ch. ed. nov. II. p. 210. — Ohba Pfr. Vers. 



p. 137. — Lucerna jmrm. [Ohba] Acl. Gen. p. 202.) - _ _ 252. 



1943. discus Desh. ^ (Fer. t. 62A. f. 4.) - - - 252. 



1944. cheiri Less. -{• - I. - 395 



1945. horizontalis Pfr. (Rv. n. 116. t. 27. — Ch. ed. 



nov. III. p. 410. — Obba Pfr. Vers. p. 137.) . . - III. - 252. 



1946. marginata Mull. (Coll. 1032. — liv. n. 129. 



t. 30. — Ohha Pfr. Vers. p. 137. — H. scabrosa 

 Fer. — //. Grayana Pfr. olini. — H. Grayl Jacq., 

 Rouss. p. 24. — Lucerna marginata et Grayana 

 [Ohba] Ad. Gen. p. 202. 201.) - -- 252. 



1947. gallinula Pfr. (Coll. 1033. — Rv. n. 130. t. 30. 



— Ch. ed. nov. III. p. 438. — Obba Pfr. Vers. 



p. 137. — Lucernagall. [Obba] Ad. Gen. p. 201.) - - - 252. 



1948. elegantissima Pfr. (Rv. n. 428. t. 81. — Thea ' 



Pfr. Vers. p. 137. — H. pretiosa Alb. — Iberiis 

 eleg. [Thea] Ad. Gen. p. 212. — Var.? //. Mackensii 

 Ad. et Rv.) - -- 253. 



1949. H. Cathcartae Reeve. f 



'< H, testa ampliter excavate uml)ilicata , pIano-orl)iculari, 

 depressissima , arcuatim ruguloso-striata, rubello-cornea; anfr. 

 6 superne planatis, ad suturas tenucmarginatis, ad peripheriam 

 acute compresse carinatis, infra convexis; apertura compresse 

 securiformi; lai)ro simplici. » (Rv.) — Diam. max. 27, alt. 9 mill. 

 (Ex icone speciin. Mus. Cathcart.) 



Helix Cathcartae Reeve Conch. ic. n. 1427. t. 203. 

 — — (Thea) Pfr. Vers. p. 137. 



Habitat Typinsan, Meiacoshimas. 

 Obs. An varietas praecedentis? 



1950. H. Gueinzii Pfr. 



T. umbilicata, depressa, carinata, tenuis, plicis subdistan- 

 tibus , retrorsum descendentibus sculpta , pellucida , pallide 

 cornea, seriebus macularum rufaruin ornata; spira vix elevata; 

 anfr. 5 sensim accrescentes , prope suturam turgidi, ultimus 



