Report on the zoological collections made in the Indo-Pacific Ocean ...

;258 COLLECTIONS FROM MELANESIA.I designate this common species (which is usually referred tounder the Fabrician name quadridens or quadrldentata) D. dorsipes,because Linna3us's somewhat detailed description in the ' MuseumLudovicse Ulricse ' agrees with it excellently in almost every particular,and more especially as regards the disposition of the spineson the postabdominal segments of the male, where, however, itmust be noted that there is usually a tubercle on the first postabdominalsegment, which is described by Linnaeus as " itiermis.'' In thefemale there are between the larger spines or tubercles of the postabdominalsegments several smaller spinules. If this species be nottruly I), dorsipes of Linnaeus, it would appear (as Hilgendorf notes)that Herbst's name of D. frascone has stiU priority over the Pabriciandesignation.Of this species there are specimens in the British-Museum collectionfrom several localities on the North-eastern coast of Australia,e. g., Torres Straits (J. B. Jidces), Dunk Island (J. Macgillivray,H.M.S. ' Rattlesnake '), and near Cumberland Island (J. Macgillivray); also a small specimen from Shark Bay, W. Australia (F.M. Rayner, H.M.S. ' Herald '), in which the eye-peduncles are relativelymuch longer, probably belongs here. There are, besides,specimens in the Museum collection from the Indian Ocean (Bardwicl-e); Ceylon {E. W. H. JBoldsivorth) ; Philippine Islands ( Cuming) ;Jaj^an {Leyden collection); and China seas {E. Swinhoe).There are in the Museum collection two specimens from Shanghai,which have the carapace and ambulatory legs much more tomentose,the median spines of the front less prominent, and the right-handchela (in the male) considerably developed, with the palm swollenand vertically very deep ; they are probably only old and large specimensof this species.Three female specimens from China only differ in the remarkablebreadth of the carapace at the branchial regions, and the larger sizeof some of the wart-like tubercles of the dorsal surface, and areprobably not distinct. A specimen from Canton Province (Dr. Cantor)approaches in the lesser width of the carapace ordinary femalesof D. dorsipes. In all of these the postabdomen is deficient.Finally, two specimens from Zebu, Philippines (Cuming), whichWhite has referred to D. callida, Fabr., only differ in the slenderlegs and in the obsolescence of the tubercles of the carapace, whosesurface, however, is uneven and elevated where these tuberclesordinarily exist. They may be distinct or only a variety of D.dorsipes.115. Dorippe australiensis. (Plate XXVI. fig. D.)I thus designate a small example obtained at Port Denison, 4 fms.also two specimens from Moreton Bay (purcliased), and four fromthe Australian coast (Dr. Bowerbank) , but without any special indicationof locality, in the British-Museum collection.This form is evidently very nearly allied to D. grcmidata, De