Helicter compta, Pease, 1869

Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 250

compta Pease, 1869 , Helicter

( Fig. 1B )

Helicter (Partulina) compta Pease, 1869: 175 .

CURRENT TAXONOMIC STATUS. — Achatinellinae, Partulina (Partulina) dwightii (Newcomb, 1855) . Valid subspecies.

TYPE MATERIAL. — Lectotype (Fischer-Piette 1950: 73, pl. 4, fig. 54) MNHN IM-2000-30805.

TYPE LOCALITY. — “Molokai”.

REMARKS

The original description was based on more than one specimen: “une bande blanchâtre […] qui est habituellement [usually] bordée […] par une ligne d’un brun rougeâtre” and “Elle […] présente souvent [often] […] une angulation particulière” ; and specimens were noted as being in the collections of both Pease and Crosse. A single specimen was noted as “Exemplaire-type” and illustrated by Fischer-Piette (1950: 73, 180, pl. 4, fig. 54). This usage is here treated as a lectotype designation (see introductory text regarding lectotypes). The specimen is the single specimen in MNHN IM- 2000-30805, and a label of the collection of the Journal de Conchyliologie , associated with this specimen and written at the time of Fischer-Piette, says “type”, as does an earlier label, and another states that it is the specimen figured. Johnson (1994: 9) listed this specimen as the “ Holotype ”, while also listing “ paratypes ” ( MCZ 25826, 25828 ) .

Figures

FIG. 1. — Achatinellidae Gulick, 1873: A, Tornatellina cincta Ancey, 1904, syntype MNHN IM-2000-20012, 3.8 mm, fig. 5 of Ancey (1904a); B, Helicter compta Pease, 1869, lectotype MNHN IM-2000-30805, 24.7 mm; C, Helix decora Férussac, 1821, possible syntype MNHN IM-2000-30806,18.0 mm, fig. 3015 of Chemnitz (1795); D, Auriculella expansa Pease,1868, lectotype MNHN IM-2000-30807, 6.4 mm, fig. 8 of Pease (1868); E, Helix lorata Férussac, 1825, lectotype MNHN IM-2000-30808, 14.2 mm, fig. 8 of Férussac in Quoy & Gaimard (1825); F, Helix lugubris Férussac, 1821, possible syntype MNHN IM-2000-30810, 17.2 mm, fig. 2062 of Chemnitz (1795). Scale bars: A, D, 1 mm; B, C, E, F, 10 mm. Dimensions given are shell height; reproductions of original illustrations not to scale.