Proceedings of 

 the United States 

 National Museum 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. 



Volume 123 1967 - Number 3618 



Notes on the demanii Section 



Of Genus Gonodactylus Berthold 



With Descriptions of Three New Species 



(Crustacea: Stomatopoda) 



By Raymond B. Manning 



Chairman, Department of Invertebrate Zoology 



Among the Indo-West Pacific species assigned to the genus Gono- 

 dactylus by Kemp (1913) was G. demanii Henderson, with two varietal 

 forms, G. d. spinosus Bigelow and G. d. espinosus Borradaile. These 

 three forms, characterized chiefly by their small size and small ocular 

 scales, and, in the first two, by the strongly arched median carina of 

 the telson and the presence of dorsal spinules on the telson, occupy an 

 isolated position in the genus. Some authors, prior to Kemp's work, 

 considered these forms to be varieties of G. chiragra (Fabricius, 1781) ; 

 subsequent to 1913 they have been considered as distinct species or as 

 three subspecies of G. demanii. 



As noted above, very small size, with total length not exceeding 

 50 mm (in some species 30 mm or less), is characteristic of G. demanii 

 and its allies. Kemp was certainly aware of this but apparently 

 disregarded it in his attempt to order the apparent variants of the 

 common G. chiragra. Earlier workers, notably Lanchester (1903), 

 had recognized numerous lettered or named varieties of G. chiragra. 



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