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山华蜗牛Cathaica (Cathaica) orestias (Preston, 1912)的重描述
Morphological Re-description of Cathaica (Cathaica) Orestias (Preston, 1912)
张卫红1,陈德牛2,周卫川3*
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DOI:
作者单位:(1. 新疆大学生命科学与技术学院,乌鲁木齐830046;2. 中国科学院动物研究所,北京100080;3. 福建进出入境检验检疫局技术中心,福州350001)
中文关键字:肺螺亚纲;柄眼目;巴蜗牛科;华蜗牛属;重描述
英文关键字:Pulmonata; Stylommatophora; Bradybaenidae; Cathaica; morphological redescription
中文摘要:笔者赴甘肃省天水地区调查陆生贝类危害果树时,发现蜗牛危害各种果树苗木,经比对鉴定,发现主要危害种类系山华蜗牛Cathaica (Cathaica) orestias (Preston1912)。山华蜗牛原始描述简单,仅附有一幅手绘的贝壳侧面图,且将此种归入Eulota属。笔者对山华蜗牛形态学进行了深入研究,对其生殖系统进行了解剖,并附生殖系统解剖图和描述,可为深入研究这一重要蜗牛物种提供参考。
英文摘要:Cathaica (Cathaica) orestias (Preston, 1912) was collected on 11th July 2010 in Qinzhou Town (34°06´N, 105°07´E), Tianshui City (Gansu Province, China), and the morphological characteristics was re-described. Subsequently, the reproductive system of Cathaica (Cathaica) orestias (Preston, 1912) was anatomized and the specimens were deposited in the Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

Cathaica (Cathaica) orestias (Preston, 1912) (Figs. 1~3)

Eulota (Cathaica) orestias Preston, 1912 J. Mollus. Stud. 10(1): 11~15.

Cathaica (Cathaica) orestias Yang, 2012
Shell: Shell of Cathaica (Cathaica) orestias is small (height 6.9~8.2 mm; diameter 11.5~14.0 mm), thick, lustrous, depressed turbinate, with 5~5.5 whorls. Shell is pale flesh-coloured, painted with a reddish brown supersutural band, which appears as a superperipheral band on the last whorl. Protoconch is smooth. Sutures are deep. Shell has coarsely plicate and very fine wavy, spiral striae, which become more noticeable on the base of the shell. Umbilicus is rather narrow, deep, hole-shaped. Columella is thin, outwardly expanded. Aperture is broad and irregular sub-lunate.
Reproductive system: Atrium is short. Penis is long, without penis sheath and epiphallus. Penial retractor muscle is rather long and moderate thick. Dart sack is bag-shaped, containing one spear-shaped dart, without accessory sack. Mucous gland is composed of one bundle of tubular branches, contained about 20 mucous ducts. Free oviduct and vagina are relatively long. Spermatheca does not reach to the base of albumen gland, and lays on spermoviduct about 3/4 of length from the albumen gland. Ovotestis is composed of three or four clumps of finger-like lobes. Ovotestis duct is long. All soft part is milky white, without pigmentation spot.

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