Bull. not. Hist. Mux. Land. (Zool.) 63( 1):33^9 



Issued 26 June 1997 



A review of the Diogenes (Crustacea, 

 Paguridea) hermit crabs collected by Bedford 

 and Lanchester from Singapore, and from the 

 'Skeat 9 Expedition to the Malay Peninsula, 

 with a description of a new species and notes 

 on Diogenes intermedins De Man, 1892 



PATSY A. MCLAUGHLIN^ 



Shannon Point Marine Center, 1900 Shannon Point Road, Anacortes, WA 98221-4042, U.S.A. 



PAUL F. CLARK 



Department of Zoology, Natural History Museum, Cromwell Road, London SW7 5BD, England. 



CONTENTS 



Introduction 33 



Material and Methods 34 



Systematic Account 34 



Diogenes inglei sp. nov 34 



Diogenes rectimanus Miers, 1 884 37 



Diogenes goniochirus Forest, 1956 38 



Diogenes avarus Heller, 1865 39 



Diogenes planimanus Henderson, 1893 40 



Diogenes platvoeti nom. nov 42 



Diogenes stenops Morgan and Forest, 1991 43 



Diogenes mixtus Lanchester, 1902 45 



Paguristes hians Henderson, 1888 46 



Acknowledgements 48 



References 48 



SYNOPSIS. Species of the hermit crab genus Diogenes, collected by Francis P. Bedford and William F. Lanchester from 

 Singapore, and from the 'Skeat Expedition' to Malay Peninsula near the turn of the century have been reviewed for the first time. 

 Specimens identified asD. senex Heller from Lanchester's Singapore collecting trip represent an undescribed species, while those 

 from the 'Skeat' expedition to the Malay Peninsula have proved to represent the taxon recently described as D. stenops Morgan 

 and Forest. Similarly, specimens identified by Lanchester asD. rectimanus Miers do not represent that taxon, but rather D. avarus 

 Heller and D. goniochirus Forest. Because of this latter confusion, the holotype of D. rectimanus has been redescribed. 

 Lanchester's specimens assigned toD. planimanus Henderson include bothD. planimanus andD. intermedins De Man. However, 

 the species name, D. intermedins De Man, 1 892 is preoccupied and a replacement name is proposed. Diogenes mixtus Lanchester 

 also has been redescribed, andD. desipiens Lanchester placed in synonymy with Paguristes hians Henderson. All of the species 

 have been illustrated. 



INTRODUCTION 



In a recent review of specimens assigned to Diogenes senex Heller, 

 1865, by McLaughlin and Haig (1995), Heller's (1865) taxon was 

 restricted, by neotype designation, to a species presently known only 

 from the eastern coast of Australia. Among the other specimens of D. 

 senex sensu law examined by McLaughlin and Haig (1995) were 

 three lots from the Natural History Museum (BMNH): one from 

 East Africa (BMNH 1955.3.5.58-60), one from the Suez Canal 

 (BMNH 1927.11.2.226), and one from Singapore (BMNH 

 1905.10.21.33-36). These authors did not attempt to identify the 



species from East Africa. They noted that the specimen from the 

 Suez Canal agreed with those identified by Bouvier (1892) and 

 Nobili (1906) as D. senex from Suez and Djibouti that had subse- 

 quently been referred to D. gardineri Alcock, 1 905 by Lewinsohn 

 (1969). While the specimens from Singapore 'were definitely' not 

 D. senex sensu stricto, McLaughlin and Haig were unable to deter- 

 mine their identity. All three lots have now been reexamined. The 

 specimens from the Suez Canal have been compared with specimens 

 of D. gardineri from its type locality, the Maldive Islands, and the 

 identity of the Museum specimens as that species has been verified. 

 The specimen from East Africa has also proved to be D. gardineri. 

 The specimens from Singapore represent an undescribed species. 



© The Natural History Museum, 1997 



