Laeocathaica dolani (Pilsbry, 1934)

Wu, Min, Shen, Wang & Chen, Zhong-Guang, 2023, Land snail diversity in central China: revision of Laeocathaica Moellendorff, 1899 (Gastropoda, Camaenidae), with descriptions of seven new species, ZooKeys 1154, pp. 49-147 : 49

publication ID

https://dx.doi.org/10.3897/zookeys.1154.86237

publication LSID

lsid:zoobank.org:pub:4E410C2A-CC03-438F-8AC7-C5370819DE6C

persistent identifier

https://treatment.plazi.org/id/B4855E0D-AD83-51DD-8796-DCBD854C48EA

treatment provided by

ZooKeys by Pensoft

scientific name

Laeocathaica dolani (Pilsbry, 1934)
status

 

Laeocathaica dolani (Pilsbry, 1934) View in CoL

Figs 2A View Figure 2 , 5C View Figure 5 , 7 View Figure 7 , 42A, B View Figure 42 , 47C, D View Figure 47 , 52F View Figure 52

Cathaica (Laeocathaica) dolani Pilsbry, 1934: 16, pl. 3, fig. 4, 4a-c.

Cathaica dolani - Yen, 1938: 446.

Laeocathaica (Laeocathaica) dolani - Richardson 1983: 78.

Laeocathaica dolani - Chen and Zhang 2004: 335, fig. 328; - Páll-Gergely et al. 2022: 59, fig. 18A.

New material.

HBUMM00069, 6 fma, 3 fma dissected; Kangding , Sichuan Province, near 29.995149°N, 101.967008°E, 1964-VII-16, coll. Chen, D.-N. HBUMM08439, Manai [马耐], Badixiang [巴底乡], Danbaxian (= Danba), Sichuan Province, 31.11276°N 101.885295°E, 2008-VII-18, coll. Di, Zhi-Yong [邸智勇] GoogleMaps .

Distribution.

Sichuan: Kangding, Danbaxian (type locality: Rumichangu).

Additional information of shell.

The shell is covered with radially arranged low scales of variable length (~ 25 - ~ 300 µm long) everywhere. The size (esp. length) of scales increase from protoconch to body whorl. Spiral grooves are absent throughout the shell.

General anatomy.

Eversible head wart present but not prominent. Jaw arcuate, with 3-6 projecting ribs.

Anatomy of genital organs.

Penial sheath covering ~ 1/4-1/3 of penis. Penis short, thick, distally expanded. Inside penis, two thick and prominent pilasters fusing into one Y-shaped fork at proximal 1/3-1/2 penis, accompanied with ~ 6 narrower or equally thick pilasters nearby. Pilasters on distal end of penis not merging into thick folds. Vas deferens narrow throughout. Vagina between atrium and dart sac not elongated. Vagina between dart sac and insertion of bursa copulatrix duct ~ 1/2 length of dart sac. Dart sac approximately as long as penis. Love dart ~ 5 mm long, apically with cross-section rhombic. Accessory sac small, internally empty, inserting into dart sac at middle part, opening to distal dart chamber. Mucous glands two (HBUMM00069-spec.1-3), each complicatedly branched. Proximal accessory sac one, large, on right side of dart sac, with an opening leading to dart chamber near its opening. Bursa copulatrix duct basally slightly expanded. Bursa copulatrix elongate, ovate.

Remarks.

In Laeocathaica , Laeocathaica dolani is the only species with only one proximal accessory sac. In addition, this species is unique in the genus that it keeps periostracum scales throughout its lifetime.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Stylommatophora

Family

Camaenidae

Genus

Laeocathaica

Loc

Laeocathaica dolani (Pilsbry, 1934)

Wu, Min, Shen, Wang & Chen, Zhong-Guang 2023
2023
Loc

Cathaica (Laeocathaica) dolani

Pilsbry 1934
1934
Loc

Cathaica dolani

Pilsbry 1934
1934