Ampullaria perakensis, Morgan, 1885

Cowie, Robert H. & Héros, Virginie, 2012, Annotated catalogue of the types of Ampullariidae (Mollusca, Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 34 (4), pp. 793-824 : 812

publication ID

https://doi.org/ 10.5252/z2012n4a8

persistent identifier

https://treatment.plazi.org/id/039D87EF-3942-FFA2-FF1F-50EAFBB6518C

treatment provided by

Felipe

scientific name

Ampullaria perakensis
status

 

perakensis Morgan, 1885 , Ampullaria

( Fig. 5G View FIG )

Ampullaria perakensis Morgan, 1885: 418 , pl. 8, fig. 12a-d.

CURRENT TAXONOMIC STATUS. — Pila View in CoL . Valid species.

TYPE SPECIMEN. — Lectotype (here designated) MNHN 4511 About MNHN .

TYPE LOCALITY. — “le royaume de Pérak ” [Perak, Peninsular Malaysia].

REMARKS

The label indicates that this shell is from Morgan’s collection; the shell matches the dimensions given in the description; and it is clearly the specimen illustrated. On this basis we designate it as the lectotype to stabilise the name.

peristomata d’Orbigny, 1835 , Ampullaria ( Fig. 5H View FIG ) Ampullaria peristomata d’Orbigny, 1835a: 32 , 33 [1838: pl. 52, figs 4-6; 1841: 378].

CURRENT TAXONOMIC STATUS. — Pomacea (Pomacea) . Valid species.

TYPE SPECIMENS. — Syntypes MNHN 4509 (4 spms), 4510 (2 spms).

TYPE LOCALITY. — “Guarayos (republica Boliviana)”.

REMARKS

Cowie& Thiengo (2003:72) incorrectly cited page 33 as the first page of the description. The two lots may be two different but similar species. Furthermore, they are both clearly different from the NHMUK syntypes of this species, which have a narrow umbilicus and shell height greater than shell width. None of these MNHN shells corresponds closely to the original description (d’Orbigny 1835a: 32, 33), in particular regarding the width of the umbilicus (original description: “sub-imperforata”) and in the ratio of shell height to width (original description: “Long. 40 millim., lat. 38 millim.”) ; all have a wide umbilicus, those in MNHN 4509 About MNHN having shell width greater than shell height,while those in MNHN 4510 About MNHN are approximately equi-dimensional. The features noted in the original description are reiterated in the later description (d’Orbigny 1841: 378) and are clear in the later illustrations (d’Orbigny 1838: pl. 52). None of the shells matches the illustrations. The specimens in MNHN 4509 About MNHN (more depressed, larger shells) are extremely similar to the larger of the syntypes ( MNHN 4523 About MNHN ) of Ampullaria zonata d’Orbigny, 1835 , although again these do not closely match the original description. Correct taxonomic assignment of these syntypes and possible designation of a lectotype must await further research .

MNHN

Museum National d'Histoire Naturelle

NHMUK

Natural History Museum, London

Kingdom

Fungi

Phylum

Ascomycota

Class

Sordariomycetes

Order

Melanosporales

Family

Ceratostomataceae

Genus

Ampullaria

Loc

Ampullaria perakensis

Cowie, Robert H. & Héros, Virginie 2012
2012
Loc

Ampullaria perakensis

MORGAN J. & DE 1885: 418
1885
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