IIELIX §. 77. 2G1 



porist. simplex, reclum; radialim fusco et albido lessellata. — 

 Diam. 6, a!t. 3 mill.» (P.) 



Pilhys? cclsa Harper Pease in Crosse Journ. Conch. XVIII. 1870. 



p. 396. 

 Endodontu celsa Pease in Proc. Zool. Soc. 1871. p. 455. 

 Habitat in insula Raiatea. 



Obs. «Species intermedia infer genera Pithydem et Endodonlam. — 

 Species Samoenses Endodontae a Cl. Mousson descriptae ad genus Pilhy- 

 dem lypicum pertinent. » ^ 



* 



1695. obolus Gould. \ I. 187. III. 14 5. IV. 156. V. 222. — Patula 

 Piitel Cat. p. 93. — Endodonta obolics Pease in Proc. Zool. Soc. 

 1871. p. 474. — Taheiti. 



1696. H. decussatula Pease. •{• 



«T. discoidea, depressa, umbilicata, fusco-castanea et fulvo 

 maculose strigata, oblique confertim et arcualim costata, co- 

 stellis volventibus decussata; anfr. 4 — 5, convexo-rotundati, 

 setigeri; sutura iinpressa; spira parum elevata; ad peripheriam 

 rotundalim obsolete angulata; umbilicus '/3 diametri subaoquans; 

 apertura elliptica, vix obliqua, lamella unica intro volveute in- 

 slrucla. — Diam. 4^^, alt. V/^ mill.» (P.) 



Helix decussatida Harper Pease in Tryon Anier. journ. Conch. 11. 

 1866. p. 291. 



Pitys deciissatula Pease in Proc. Zool. Soc. 1871. p. 474. 

 Ilabitat in insulis Sandwich. 



1697. hystrix Mighels. (Coll. 650.) I. 116. III. 145. IV. 156. V. 222. 

 — Ilelix setigera Gould. — Pilys hystrix Pease in Proc. Zool. 

 Soc. 1871. p. 474. — Ins. Sandwich. 



1698. H. paucicostata (Pithys) Pease. -f 



«T. discoidea, late umbilicata, tenuiuscula, radiatim oblique 

 et remote filo-costata; spira depressa, planulata; sutura bene 

 impressa; anfr. 4, convexi, ultimus rotundatus; umbilicus Yg dia- 

 metri occupans; apeitura vix obliqua, subcircularis; paries aper- 

 turalis lamellis 2 intrantibus munitus; perist. simplex, rectum; 

 flavido et rufo alternatim strigata, strigis flexuosis; epidermide 

 tenui induta. — Diam. 4, alt. 2 mill.» (P.) 



Pilhys paucicostata Harper Pease \n Crosse Journ. Conch. XVIII. 



1870. p. 395. 

 Pitys filocostata Pease in Proc. Zool. Soc. 1871. p. 454. 

 Habitat in insula Kauai. 



Obs. Species peraffinis //. /lysincj Migh., costis filiformibus, remolis, 

 splendide albis praecipue discrepaus. Praetcrea minor est et anfraclus re- 

 gulariter convexi. 



