568 HELIX. 
Pilys tumuloides Garr. in Amer. journ. conch. VII. 1872. p. 225. 
E5459: f die 
Patula tumuloides Schmeltz Mus. Godeffr. cat. V. p. 94. 
Habitat Rarotonga, Cook's Isles. 
1658». H. cavernula (Pitys) Garrett. 
« Testa umbilicata, subgloboso-conoidea, crassiuscula, cinerea 
vel fusco-cornea, interdum saturate brunnea, plerumque brunneo 
superne tessellata, inferne obscure radiata; spira obtusa, cupu- 
laeformis, magis minusve elevata; anfr. 7, convexi, ultimus acute 
carinatus, subüliter costatus, costis confertis, obliquis, curvatis, 
interstitiis minute striatis; basis planulato-convexa, striata, non 
costata; sutura carina funiculata; umbilicus amplus, profundus, 
cavernosus, margine contractus; apertura transversa, subrhom- 
boidea, faucibus 2, rarius 3 lamellis remotis, et duabus in re- 
gione parietali instructa; perist. tenue, acutum, leviter sinuosum, 
cum margine umbilici acuto continuum; columella uniplicata, si- 
nuata. — Diam. 6, alt. 4 mill.» (Garr. angl.) 
Pitys cavernula Garr. in Amer. journ. conch. VII. 1872. p. 229, 
t: 19:0, M6: 
Patula cavernula  Schmeltz Mus. Godeffr. cat. V. p. 94. 
Habitat Roratonga, Cook's Isles. 
* 
1660. Jacquinoti Pfr. — Helix cavernula Jacq. ex Pease. 
1662*. H. constricta (Endodonta) Semper. 1 
« Testa umbilieata, depresse-conica, supra carinam constricta, 
confertissime striata, sordide albo et brunneo regulariter mar- 
morata; spira haud elevata, obtusa; anfr. 5 angusti, ultimus 
basi rotundatus, confertim striatus; umbilicus angustus; apertura 
vix obliqua, securiformis, plieis 8 intrantibus munita, quarum 
J in pariete aperturali, & in margine basali, 1 in margine su- 
pero; perist. simplex, acutum, superne valde coarctatum. — 
Diam. maj. 4, min. 3!5, alt. 2 mill.» (S.) 
Endodoníta constricta Semp. Philippin. Landmoll. III. 1874. p. 140. 
Habitat Peleliu insularum Palau. 
1662». H. irregularis (Endodonta) Semper. 
«Testa umbilicata, conica, carinata, superne confertim ar- 
cuato-costata, sordide albo et brunneo irregulariter marmorata; 
spira elevata, obtusa; anfr. 6 angusti, ad carinam marginati, 
ultimus basi subplanatus, costatus; umbilicus angustus; apertura 
