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Bannana (spider)
''Bannana'' is a genus of goblin spiders (family Oonopidae) native to Xishuangbanna prefecture, Yunnan Province, China, where it lives in the leaf-litter of tropical rainforest. There are two known species: ''Bannana crassispina'' and ''B. parvula'', both described in 2015. Individuals are pale yellow and unpatterned, and range from around 1.0 to 1.8 mm in body length, with females being slightly larger than males. The eyes are reduced or entirely absent. Known only from a nature reserve in Xishuangbanna, ''Bannana'' belongs to a group of Asian goblin spiders known as the "''Dysderoides'' complex", that ranges from China to Pakistan and south to Indonesia.
==Description==
Species of ''Bannana'' are generally similar in overall appearance, although ''B. parvula'' is smaller. The body color is yellow, without pattern. Eyes are absent or highly reduced, visible only as remnants in ''B. crassispina''. The cephalothorax or prosoma is broadly oval when viewed from above, and the abdomen or opisthosoma is somewhat oval-shaped, and rounded at the rear. A strongly hardened (sclerotized) plate (scutum) covers the upper surface abdominal. The body is sparsely covered with〔
''B. crassipina'' males are around 1.5 mm in body length (tip of the cephalothorax to end of the abdomen), while females are slightly larger at 1.8 mm. ''B. parvula'' are smaller, with males and females measuring around 1.0 and 1.1 mm, respectively. In addition to size, male ''B. crassispina '' can be distinguished from male ''B. parvula'' by the presence of two large bristles (setae) on the palpal tibiae (the penultimate segments of the pedipalps) and two rows of setae on the sternum (the ventral portion of the cephalothorax). Females can be distinguished by a relatively smaller abdominal scutum in ''B. crassispina''.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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