TRUNCATELLA §. 2. 3. 
13 
21 . Tr. debilis Mousson. f 
„ Testa minuta, rimata, cylindracea, tenuis, costulis inter- 
dum vix perspicuis, supra distinctioribus (26 in anfractu) or- 
nata, subdiaphana, flavo-cornea. Spira laxa, quasi truncata; 
nucleo magno, obtuso, laevigato, integro, cylindrico, sutura 
profunda. Anfr. 4 1 / 2 convexi, medio planiusculi, subaequales; 
ultimus non descendens, 1 / 3 longitudinis non aequans, ad basin 
snbattenuatus, politus. Apertura verticals, parvula, oblique 
ovalis, supra subangulata. Peristoma continuum crassiusculum, 
expansiusculum ; margine dextro obtusulo , extus duplicato, 
parietali breviter adnato, calloso. — Long. 4, diam. 1 mill. — 
Rat. anfr. 4:1. — Rat. apert. 3:2.“ (M.) 
Truncatella debilis Mouss. in Malak. Bl. XXI. 1873. p. 156; Jahrb. malak. 
Ges. I. 1874. p. 99. t. 5. f. 3. 
Habitat ad finem fluvii Rabat imperii Maroccani (v. Fritsch 
et Rein). 
§. 3. 
22. ? striata (Cyclostoma) Quoy & Gaim. f Pneum. 6. II. 4 
(Acicula). III. 5. — Truncatella Quoyi Pfr. olirn. — Vanikoro. 
23. valida Pfr. (Coll. 15.) Aur. 184. Pneum. II. 6. III. 6. — Martens 
Ostas. Zool. II. p. 262. — Patel Cat. p. 118. — Ins. Philippin., 
Nova Caledonia, Malacca, Samoa. ( Pease in Proc. Zool. Soc. 1871. 
p. 477.) 
24. Tr. Yorkensis Cox. f 
„ Testa vix rimata, cylindrica, attenuata, tenuiuscula, 
costulis pallide flavis, vix undulatis, parum elevatis, laevibus, 
interstitiis diaphanis, calcareo-albis et aequidistantibus, sutura 
incisa; anfr. superst. 4, leviter convexi, ultimus elongatus; 
apertura verticalis, ampla et late ovalis, superne angulata; 
perist. album, continuum, subincrassatum , rectum, margine 
columellari expanso et modice reflexo. — Operc. ? — Long. 
0,34, lat. 0,13; apert. long. 0,08 poll.“ (C. angl.) 
Truncatella YorTcensis Cox Monogr. Austr. landsh. p. 93. t. 15. f. 11. 11a. b. 
Habitat Cape York Australiae (Darnel). 
* 
25. Vitiana Gould. (Coll. 16.) Aur. 184 ( conspicua ). Pneum. II. 6. III. 
6. — Patel Cat. p. 118. — Truncatella conspicua Pronn , Patel Cat. 
p. 118. — Truncatella Vitiacea Mouss. in Journ. Conch. XIII. p. 
185, Vitiana Mouss. ibid. XVII. 1869. p. 356; XXI. 1873. p. 109. — 
Taheitia vitiana Pease in Proc. Zool. Soc. 1871. p. 477: Samoa. — 
Ins. Philippin., Feejee, Ellice. 
