On the crustacea collected during the 'Skeat expedition' to the Malay peninsula. Pt. II. Anomura, Cirripedia, and Isopoda / by W.F. Lanchester.

Lanchester, William Foster.

Date:: 1902

Credit: On the crustacea collected during the 'Skeat expedition' to the Malay peninsula. Pt. II. Anomura, Cirripedia, and Isopoda / by W.F. Lanchester. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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$\_From the Proceedings of the Zoological Society of London, December 2, 1902.] On the Crustacea collected during the Skeat Expedition” to the Malay Peninsula. By W. F. Lanchester, M.A., King’s College, Cambridge1. (Plates XXXIV. & XXXV.2) Part II.3—ANOMURA, CIRRIPEDIA, and ISOPODA. The species represented in the above-mentioned groups, in this collection, number 35 (not including the land Isopods), comprised in 20 genera; of these 6 species are described as new, 2 among the Anomura and 4 among the Cirripedia ; in addition to which I have given names, among the Anomura, to one colour-variety, and, among the Cirripedia, to one subspecies and a colour-variety of that subspecies. In the latter case it will be seen that a single form has been burdened with four names, a proceeding which will not, I fear, find favour with many systematists; I have, however, given my reasons for so doing under the description of the form in question, and will only say here that I have not acted under any preconceived ideas on the general question of a quadrinomial nomenclature, but rather from the exigencies of the special case before me. Besides the marine Isopods herein described, there are in the collection some 10 species of land Isopods; many of these appeared to me, on examination, to be as yet undescribed. At the same time it seemed to me advisable to have the opinion of a specialist in this difficult group, and I therefore applied to M. Budde-Lund, of Copenhagen, who very kindly undertook to examine the specimens, and who tells me that “ several of them are not de- scribed, but I have the descriptions and drawings laying by from other collections.” These species, then, will be included by M. Budde-Lund in a more general account of the land Isopods of the Malay Peninsula, to be published later on in these ‘ Proceedings.’ A. ANOMTJRA. I. Genus Petrolisthes Stimpson. 1. Petrolisthes speciosus Dana. Porcellana speciosct Dana, IJ.S. Expl. Exp. p. 417, pi. xxvi. fig. 8 (1852). Petrolisthes speciosus Ortmann, Zool. Jahrb. Syst. vi. p. 262 (1892). Loc. Pulau Bidan, Penang. A female. 1 Communicated by Dr. S. F. Harmee, F.Z.S. 2 For explanation of the Plates, see p. 381. a For Part 1. see P. Z. S. 1901, vol. ii. p. 534. [i]$