Paeniscutalus crenellus (Philippi, 1867)

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 20-21

Taxon classification Animalia Stylommatophora Megaspiridae

Paeniscutalus crenellus (Philippi, 1867) Figs 17 A–F, 18

Bulimus crenellus Philippi 1867: 67.

Megalobulimus (Microborus) incarum Pilsbry 1944c: 29, pl. 1 figs 8-9.

Strophocheilus (Microborus) tenuis Haas 1955b: 330, fig. 70.

Thaumastus crenellus ; Richardson 1995: 374 (references, synonymy).

Thaumastus (Paeniscutalus) incarum ; Schileyko 1999: 281, fig. 338.

Thaumastus (Paeniscutalus) crenellus ; Ramírez et al. 2003: 282; Breure and Mogollón 2010: 16.

Type locality.

"Peru, hacienda de Unigambal".

Type material.

Not located.

Additional material.

ANSP 180677, holotype, and ANSP 411182 (1), paratype of Megalobulimus (Microborus) incarum Pilsbry; FMNH 51925, holotype of Strophocheilus (Microborus) tenuis Haas.

Diagnosis.

See above.

Dimensions.

Shell height 35, diameter 21 mm ( incarum Pilsbry), respectively 30.1 and 18.8 mm ( tenuis Haas).

Distribution.

Peru, Dept. Ancash, Shaurama near Huaraz (Pilsbry 1944); ibid., Yungay (Haas 1955); ibid., Carhuáz; ibid., hacienda Llaguén, Potrero Nuevo; ibid., between Huaráz and Caráz; ibid., near Colcabamba; ibid., hacienda Damián, Paja; ibid., Pacap; ibid., Tapacocha; ibid, near Cajacay; ibid., N of Chiquián, Aquia (all Breure 1978); ibid., 3 km S Macará (Breure, unpublished data); Dept. La Libertad, Unigambal ( Philippi 1867); Dept. Lima, Autisha; ibid., near Yánac; ibid., near Matucana; ibid., near San Bartolomé (all Breure 1978); ibid., Magdalena (Breure and Mogollón 2010).

Ecoregion.

Sechura desert [NT1315].

Remarks.

This species has been considered as a member of the Strophocheilidae due to its general shell shape, with a relatively low spire ( Pilsbry 1944c, Haas 1955b). The anatomy and phylogenetic data, however, clearly shows it belongs to the superfamily Orthalicoidea . The mentioning by Schileyko (1999: 282) of "2 spp." within this genus is erroneous as all described taxa are synonymous.