分類学上興味ある数種の日本産カニ類について

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1. One of the large sesarmoid crabs, Neoepisesarma(.Neoepisesartn-a)lafondi (JACQUINOT & LUCAS) has been obtained for the first time from Iriomote Island, Okinawa. The full-grown male of this species has a tympanum on each fourth thoracic sternum. The movable Anger of male cheliped is marked with about 120 tubercles on the lontitudinal ridge of its upper border. 2. Uca dubia STIMPSON and U. dussumieri H. MlLNE EDWARDS are closely related with each other. In U. dubia, however, the outer surface of the palm of male larger cheliped is uniformly bright red; in U. dussumieri, the same surface is longitudinally striped with deep brownish red near the median portion, but the upper surface is bluish white. The anterior pleopod of male of U. dubia is provided with a long tube-like apical process; in U. dussumieri , it is distally obtuse and the apical process is very short. 3. Charybdis granulata DE HAAN has long been regarded as a synonym of Ch. natator (HEKBST), but it is valid. In Ch. granulata, the lower border of palm is only irregularly squamose, not sulcate, while in Ch. natator, the same border is squamose and longitudinally sulcate. The penultimate segment of male abdomen of Ch. granulata is rather rounded on lateral borders, that of Ch. natator, the outer borders are rather straight and convergent. 4. Kraussia integra DE HAAN (Fam. Atelecyclidae) can be divided into two species. The one, typical integra has the frontal margin quadrilobate, while the other ( = K. truncatiforns SAKAI, 1974--Researches on Crustacea, No. 6, p. 90) has the same margin subtruncate and bilobate.
日本動物分類学会の論文
1974-12-14

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酒井恒
日本甲殻類学会

分類学上興味ある数種の日本産カニ類について

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