BUDDE-LUND— TERRESTRIAL ISOPODA 369 



Subsequent collectors and the Sealark expedition have obtained twelve species new 

 to the fauna of Seychelles, and so the total number of the species found in the Archipelago 

 is to-day twenty : 



1. Spherillo parvus (Budde-Lund) M. 



2. „ peltatus Budde-Lund S. 



3. ,, maculosus Budde-Lund S. 



4. Pseudophiloscia lateralis, n. sp. S. 



5. „ angustissima, n. sp. S. 



6. Mahehia maculata, n. sp. S. 



7. ,, laticauda, n. sp. S. 



8. ,, bicornis, n. sp. S. 



9. Cubaris murina Brandt C. 



10. Pagana dimorpha (DoUfus) M. 



11. Metoponorthus pruinosus (Brandt) C. 



12. Nagara cristata (DoUfus) C. 



13. ,, nana Budde-Lund M. 



14. AllonisGus pallidulus Budde-Lund M. 



15. ,, pigmentatus Budde-Lund M. 



16. Setaphora ovata, n. sp. S. 



17. ,, pallidemaculata, n. sp. S. 



18. Aphiloscia annulicornis (Budde-Lund) M. 



19. Ligia exotica Roux C. 



20. Tylos minor Dollfus S. 



Among these twenty species the half, 10 species, above marked with " S," are 

 peculiar to Seychelles ; four species marked with " C " may be considered as cosmopolitan ; 

 and six species marked with an " M " are common to these islands and Madagascar, being 

 regarded as certainly introduced from that country. 



It is not only the large number of peculiar species that gives to the fauna of Seychelles 

 its particular stamp. It is rather the character of the species ; thus there are three 

 species of a new genus, Mahehia, of which no representative is known from anywhere else, 

 and two species of a genus Pseiulophiloscia, of which species are not found nearer than 

 New Zealand, Upolu, Chile. The species of Sphenllo and Setaphora only point to a 

 connection with the Australasian Islands, while no form points to any connection with 

 Africa, Madagascar being excepted. 



From Mauritius are known the following ten species : 



1. Smmiva minor Budde-Lund. 



2. Spherillo testudinalis (Budde-Lund). 



47—2 



