546 HELIX. 



1113. ammonoccras Pfr. — Dlaiul in Ann. Lyc. Ncw-York XI. p. 86: 



eliarn in insula Gronada Indiae occidentalis. 



1114. longipila Mouss. — Mouss. in Jahrb. malak. Ges. I. 1874. 



p. 85. {llelici Alsiac lioury. subsiinilis.) 



1115. Hamcliana Crossc. — Zoniles IlameUanus Crosse in Journ. 



Conch. XXIIl. 1875. p. 216. t. 9. f. 1. 

 1119. implicans Guppy. — Zonitcs implicans Giippy in Amcr. journ. 

 conch. VI. p. 307. t. 17. f. 2. 



§. 54. 



1129^ H. Fabrci (Diplomphalus) Crossc. ■{• 



«Testa late et perspective umhilicata, nautiliformis, profunde 

 biconcava, subglobosa^ translucidula, longitudinalitcr subflexuo.se 

 coslulato-striata, saturate rufo-fusca, vix violacea; spira profunde 

 immersa, valde concava, anfractus usque ad apicem late et di- 

 stincte exhibens; sutura impressa; anfractus 6, utrinque concavi, 

 planorbiformes, penultimus caeteris ex utroque latere magis con- 

 spicuus, uitimus rotundato-inflatus, magnus, caeteros involvens, 

 utrinque subplanatus; umbilicusprofundeinfundibuliformis, Y^^i'»" 

 metri aequans; apertura anguste semilunaris, subobliqua, intus 

 violaceo-albida; peristoma utrinque anfractum penultimum supe- 

 rans, simplex, marginibus valde remotis, callo tenui, parum con- 

 spicuo junctis, columellari brevissimo, leviter dilatato, violaceo- 

 albido, basali rotundato, acuto, externo arcualo, leviter sinuoso, 

 aculo. — Diam. maj. 15, min. ISy^, alt. Sy^ mill.; apert. 

 8Y2 mill. longa, basi Sy^ roill. lata» (C.) 



Diploniphalus Fabrei Crosse in Journ. Conch. XXIII. 1875. p. 136. 

 t. 6. f. 1. 



Habitat «Baie du Sud» Nova Caledoniae (E. Petit). 



Obs. Affinis H. Megei Lamb. (vid. Nr. 719), melius forsan huc 

 collocandae. 



1143\ H. canalis (Pitys) Garrctt. f 



«Testa late umbilicata, plano-discoidea, tenuis, subpellucida, 

 leviter nitens, laete fusco-cornea, radiatim obscurius malleata, 

 conferlim et subtilissime costata: costis obliquis, sinuosis; spira 

 plana, supra anfr. penultimum non elevata; sutura profunde ca- 

 naliculata; anfr. 5, perconvexi, regulariter accrescentes, ultimus 

 supra peripheriam declivis, basi rotundatus; umbilicus profundus, 

 perspectivus, omnes anfractus monstrans, Y^ diametri fere aequans ; 

 apertura obliqua^ sinuose rotundata ; perist. tenue, simplex, le- 

 viter sinuosum. — Diam. 6, alt. 2 mill.» (Garr. angl.) 



