Two new camaenid land snails (Eupulmonata) from Central China Author Wu, Min Author Chen, Zheyu Author Zhu, Xiaoran text ZooKeys 2019 861 129 144 http://dx.doi.org/10.3897/zookeys.861.35430 journal article http://dx.doi.org/10.3897/zookeys.861.35430 1313-2970-861-129 DAD076A6B8B74FEE94C4CFB56E0B6338 Sinochloritis lii Wu & Chen, gen. & sp. nov. Figs 1 , 2 , 3 , 4 , 5 , 6 Type material. Holotype , fully matured animal (HBUMM08294). Sichuan Province, Dujiangyan, Qingchenghoushan, 30°56'39.38"N , 103°28'47.21"E , 1500 m a. s. l., 2018-XI-8, coll. Li, Chenliang & Zhu, Xiaoran. A sample of foot muscle tissue was preserved in 99.7% ethanol at -20 °C (HBUMM08295). Paratypes , 1 old fms (HBUMM10008), Sichuan, Dujiangyan, Qinchenghoushan, 1500 m a. s. l., 2018-V, coll. Liu, Zhengping; 1 broken fully matured shell (HBUMM10009), Sichuan, Dujiangyan, Qinchenghoushan, 1500 m a. s. l., 2017-X, coll. Liu, Zhengping. Figure 1. Distribution map. 1 Sinochloritis lii Wu & Chen, gen. & sp. nov.; 2 Bradybaena linjun Wu & Chen, sp. nov. Description. Shell ( Fig. 2 ). Depressed; thick and solid; dextral. Whorls convex. Suture rather impressed. Umbilicus closed by reflexed columellar lip. Columella oblique. Proto conch and teleoconch densely and uniformly covered with fine granules, without spiral furrows. Aperture oblique; not sinuate at peristome. Body whorl not descending behind aperture. Shell surface without ribs. Growth lines fine. Adult shell not hairy or scaly. Adult body whorl rounded at periphery; basally convex. Ring-like thickening within aperture absent. Peristome thin; abruptly angled at top; narrowly and uniformly reflexed; brownish purple. Callus thin and transparent. Shell glossy; uniformly reddish brown. Measurements (type material): shell height 16.0-17.1 (16.5 +/- 0.55) mm, shell breadth 25.0-30.6 (27.0 +/- 3.10) mm, aperture height 11.5-12.5 (11.9 +/- 0.51) mm, aperture width 13.4-16.8 (14.9 +/- 1.72) mm, embryonic shell whorls 1.375-1.500 (1.458 +/- 0.072), whorls 4.750-4.875 (4.833 +/- 0.072), shell height/ breadth ratio 0.56-0.65 (0.62 +/- 0.049). Figure 2. Sinochloritis lii Wu & Chen, gen. & sp. nov., holotype, HBUMM08294. A shell B magnified surface of teleoconch C magnified embryonic shell D paratype HBUMM10008 E paratype, HBUMM10009. General anatomy ( Fig. 3 ). A heart-shaped head gland between ommatophore insertions present on inner body wall ( Fig. 3C , arrowed), externally with a visible gland pore ( Fig. 3A , arrowed). On internal body wall, at the base of ommatophore with two groups of glands each consisted of numerous small sacs ( Fig. 3C ). On left side of mantle edge, a leaf-shaped appendage present ( Fig. 3D, E ). Body blueish purple with scattered lighter spots ( Fig. 3H ). Sole dirty white. Jaw arcuate; with twelve more or less projecting ribs ( Fig. 3F ). Figure 3. Sinochloritis lii Wu & Chen, gen. & sp. nov., holotype, HBUMM08294. A anterior part of animal, dorsal view, showing the pore (arrowed) of head gland between ommatophore tentacles B head of the animal C internal body wall of head, showing the head gland (arrowed) between the ommatophore tentacles D, E the leaf-shaped appendage (arrowed) on the left margin of mantle, in two views F left side of animal, showing coloration and skin pattern G right side of head. Scale bars: 1 mm. Genitalia ( Figs 4 , 5 ). Penis sheath absent. Penis thick; externally simple; internally with five thick and high plicae/pilasters ( Fig. 5D ). Epiphallus longer than penis; with section between penial retractor muscle and epiphallic papilla one-third thickness of penis; section between penial retractor muscle and vas deferens insertion much thicker than proximal part but thinner than penis ( Fig. 5A ); internally with a large peach-shaped epiphallic papilla (approximate size 3.5 x4.0x 6.0 mm3) entering penis ( Fig. 5A , B ); externally, partially connected with distal penis by strong muscles that insert on penis just opposite to penial retractor muscle ( Figs 4C , 4D , 5A , arrowed). Flagellum cylindrical; tapering. Inside flagellum and epiphallus, a long pilaster running from tip of flagellum to epiphallic papilla and a much shorter wavy pilaster running from tip of flagellum to vas deferens insertion ( Fig. 5C ). Vas deferens thin; of even thickness ( Fig. 4A ). Vagina subequal to penis in length ( Fig. 4A ). Base of bursa copulatrix duct expanded and ball-shaped ( Fig. 4A ); internal wall strongly corrugated ( Fig. 5E ). Measurement of holotype: P- 13.6 mm; Ep- 19.3 mm; Fl- 8.6 mm; VD- 31.4 mm; PR- 4.6 mm; Va- 18.8 mm; FO- 5.4 mm; BC plus BCD- 37.9 mm. Figure 4. Sinochloritis lii Wu & Chen, gen. & sp. nov., holotype, HBUMM08294. A genitalia, general view, distal part opened B male part, intact C male part, showing the muscle (arrowed) connecting epiphallus and penis D male part, with the muscle connecting epiphallus and penis partially severed (arrowed). Scale bars: 1 mm. At - atrium; BC - bursa copulatrix; BCD - bursa copulatrix duct; EBM - epihallus-binding muscle, the muscle binding the proximal epiphallus to the distal end of penis; Ep - epiphallus; Fl - flagellum; P - penis; PR - penial retractor muscle; Va - vagina; VD - vas deferens. Figure 5. Sinochloritis lii Wu & Chen, gen. & sp. nov., holotype, HBUMM08294. A male part, with the muscle (arrowed) connecting epiphallus and penis completely severed B exposed part containing epiphallic papilla C exposed epiphallus and flagellum. Arrow indicates insertion of vas deferens D opened penis, showing penial pilasters E basal part of bursa copulatrix duct, exposed. Scale bars: 1 mm. At - atrium; BCD - bursa copulatrix duct; EBM - epihallus-binding muscle, the muscle binding proximal epiphallus to distal end of penis; Ep - epiphallus; EpP - epiphallic papilla; Fl - flagellum; FO - free oviduct; P - penis; PR - penial retractor muscle; PP - penial pilaster; Va - vagina; VD - vas deferens. Etymology. This species is named in honor of Dr. Chenliang Li who collected and sent us the holotype (HBUMM08294). Distribution. Sichuan (Qingchengshan), only known from the type locality ( Fig. 1 ). Ecology. This species was found living in the well-developed forest ( Fig. 6 ). Figure 6. Sinochloritis lii Wu & Chen, gen. & sp. nov., holotype, HBUMM08294. Habitat, photographer Chenliang Li. Taxonomic remarks. The new species has a closed umbilicus, otherwise is very close to Trichochloritis percussa in shell size (Table 2), the general shape and the microsculpture of shell. Camaena hemiclista (Schmacker & Boettger , 1894) known only from Hubei (Lytschouan=Lichuan), which has a closed umbilicus and is bluntly shouldered (but not visible in Yen 1939 : pl. 12, fig. 42) resembles the new species; however, the new species has fewer whorls and a clearly rounded periphery. Table 2. Comparison among Sinochloritis lii Wu & Chen, gen. & sp. nov. and the Chinese species once placed in Trichochloritis Pilsbry, 1891.

-	Diameter major (mm)	Height (mm)	Whorls	Hairy	Distribution
T. adaequata (Gredler, 1894)	12	7	41/2	No	W Hubei,
T. herziana ( Moellendorff , 1888)	14.5-17	10.5	5	No	Hainan
T. hunanensis Yen, 1939	11	7.2	41/2	No	Hunan
T. hungerfordiana (Nevill, 1884)	14.5-18	10.5	5	Yes	Taiwan, Hongkong, Guangdong,
T. hung. rufopila ( Moellendorff , 1884)	15	9.25	5	Yes	Hongkong
T. hung. franciscanorum (Gredler, 1887)	18-22	9-12	52/3-6	No	S Hunan
T. mola (Heude, 1885)	30-31	15	4.5 **	No	Yunnan
T. molina (Heude, 1890)	14-17	10	4	No	Hubei
T. percussa (Heude, 1882) *	26-30	19	51/4	No	Hubei
T. puberula (Heude, 1885)	15-18	9	5	Yes	Chongqing
Sinochloritis lii Wu & Chen, gen. & sp. nov.	25.0-30.6	16.0-17.1	43/4-47/8	No	Sichuan