HELIX 8. 96. 289 
1961. costulosa Pfr. ill. 159. IV. 484. V. 255. — Ins. Salomonis. 
1969. virgulata Sow. -- 1. 351. IV. 184. V. 255. — Habitat? 
1963. trochiformis F'ér. (Coll. 783.) I. 206. III. 159. IV. 184, V. 255. 
— ZAZonites trochiformis Ad. — Nanina trochiformis Mart., (Dis- 
cus) Pütel Cat. p. 85. —  Trochomorpha, trochiformis Pease in 
Journ. Conch. XVIII. 1870. p. 398 (ins. Raiatea et Tahaa) cum 
var. pallente*); Proc. Zool. Soc. 4871. p. 156. — Taheiti, Moorea. 
1964. H. subtrochiformis (Trochomorpha) Mousson. T 
«Differt ab H. trochiformi Fér. testa magis discoidea, imo 
interdum subconcavo-conica, carina acutiore, umbilico plerumque 
angustiore, superficie non laevigata sed striis incrementi lineolas 
irrezulares albidas et aspectum grisescentem  producentibus 
sculpta.» (M.) 
Var. albo-striata. — Spira fusco-nigrescens, strigis trans- 
versis, albis, imperfectis, eleganter ornata, ad basin fulvescens, 
cum zona peripherica fusca. (M. 1870.) 
Helix trochiformis Gould Exped. shells p. 61. t. 4. f. 58. 
(Non Fér.) 
—  EKurydice Mouss. in Journ. Conch. XIIL 1865. p. 170. 
(Non Gould.) 
Trochomorpha | subtrochiformis Mouss. in Journ. Conch. XVII. 
41869. p. 335. t. 44. f. 6; XVIII. 1870. 
p. 122. 
Habitat frequens in insulis Samoénsibus Upolu et Savai, var. 
in ins. Kanathia (Griffe). 
ES 
1965. nigritella Pfr. (Coll. 784.) I. 205. III. 159. IV. 484. V. 255, — 
Zoniles migrilella Ad. — Nanina nigritella Mart., Pütel Cat. p. 85. 
— Trochomorpha nigritella Pease in Journ. Conch. XVIII. 1870. 
p. 400; Proc. Zool. Soc. 1871. p. 457 cum var. oppressa.**) — 
Ins. Ponape Archipelagi Carolinarum. Non in insulis Sandwich. 
(Pease.) 
1966. Ei. contigua Pease. 4| 
«T. elevato- interdum depresso-conica, solida, crassa, an- 
guste umbilicata, longitudinaliter tenuiter striata; spira obtusa; 
anfr. 6— 7, planulato-convexis, ultimo ad peripheriam acute àn- 
gulato, basi planulato vel subconcavo; sutura vix impressa; 
*) «Testa plerumque amplior; suleus ad basin anfractuum latior et 
profundior; pallide flavescens; anfractibus basique linea una rufescente- 
fusca cingulatis; diam. 18, alt. 414 mill.» 
**| «T. depressior, pallide flavescens, ad suturam fascia rufescenti-fusca 
cingulata, basi omnino rufescenti-fusca, plerumque linea flavescente mar- 
geinata; diam. 13, alt. 7 mill.» 
VII. 19 
