368 PERCY SLADEN TRUST EXPEDITION 



From the Cargados Islands the expedition brought back three species : 



Angara lenta Budde-Lund. This species is known from most countries around the 

 Mediterranean Sea ; perhaps it is of cosmopohtan distribution. 



Metoponorthus* pruinosus (Brandt), a cosmopohtan species. 



Trichorhina minutissima, n. sp. Though this species is a new one, I dare not 

 consider it as pecuhar to these islands. The species of the genus Trichorhina are very- 

 tiny animals, and, inhabiting moss and mouldering vegetable refuse, easily escape collectors. 

 Further, because of their white colour they are easily confounded with the young of other 

 species. This species, I think, has a wider diffusion. 



From Coetivy Island the expedition has brought back four species : 



Angara lenta Budde-Lund. 



Metopo?iorthus pruinosus Brandt. 



Setaphora suarezi (DoUfus). 



Sphei'illo parvus Budde-Lund. 



The two last species have probably entered from Madagascar ; the other two are 

 nearly cosmopolitan. 



In the island Farquhar were collected during the expedition the following six species : 



Metoponorthus pruinosus (Brandt). 



Agnara madagascariensis Budde-Lund. 



Alloniscus pigmentatus Budde-Lund. 



Aphiloscia annulicornis Budde-Lund. 



Setaphora suarezi (DoUfus). 



Bethalus simplex (Dollfus). 



These species are not peculiar to Farquhar. They all inhabit Madagascar and some 

 extend into East Africa. 



From the Amirante Islands are also presented four species, all cosmopolitan : 



Angara lenta Budde-Lund. 

 Cuharis mtmna Brandt. 



Metoponorthus pruinosus (Brandt). 

 Spherillo parvus Budde-Lund. 



Most rich and interesting is the fauna of the Seychelles Archipelago. The first 

 species of terrestrial Isopods brought home by Prof. Mobius were only two, Cuharis 

 murina Brandt and Spherillo parvus (Budde-Lund (l) p. 28 and p. 25). In the year 

 1893 M. A. Dollfus t gave a catalogue of the species collected by M. Charles AUuaud, in 

 all seven species. Besides the two species above named, he had brought home Metoponor- 

 thus p>ruinosus (Brandt), Alloniscus ptallidulus Budde-Lund j. Pseud ophiloscia angustissima 

 Budde-Lund §, Ligia exotica Roux, and Tylos minor DoUfus. 



* That Metoponorthus, Budde-Lund, 1879, is a synonym of Poreellionides, Miers, 1877, is explained by 

 Stebbing in "Records of the Indian Museum," vol. vi., pt. 4, p. 188, Sept. 1911. 



t Bull. soc. zool. Fr. vol. xviii. p. 186. Paris, 1893. | Anomaloniscus ovatus Dollfus. 



§ On p. 372 the species by Dollfus supposed to be Philoscia mina, Budde-Lund, is stated to be P. lateralis. 



