BUDDE-LUND— TERRESTRIAL ISOPODA 371 



Another more recent connection has existed between West Africa and South America 

 and between South Africa and West Australia. 



Familia Oniscidae. 

 Onisci Budde-Lund (1), p. 13, 1885. 



Subfamilia Spherilloninae Budde-Lund (2), p. 41, 1904. 



Included in this subfamily are a number of genera, Spherillo, Sunniva, Saidjahus, 

 Scleropactes, Suarezia, Arhina, Pseudophiloscia, Ambounia, Pseudarmadillo, Acantho- 

 niscus and Anai^hiloscia. 



I have earlier given the reasons for joining these genera in a subfamily. Of the 

 above-named genera the Sealark Expedition has brought back species of the genera 

 Spherillo, Pseudophiloscia, and a new genus Mahehia. 



Genus Spherillo Budde-Lund (2), p. 51 Dana. 



(U. S. Expl. Exp., vol. xiii., p. 719, 1853.) 



Five species of this genus are found in the Islands of the Indian Ocean. Two of 

 them are only known from Seychelles, one only from Mauritius, the other species are of 

 wide distribution eastwards. 



1. Spherillo parvus. _ ^ 

 Armadillo parvus Budde-Lund (l), p. 25. 



Spherillo parvus Budde-Lund (2), p. 91 ; B.-L. (5), p. 270. Taf 12, fig. 30—37. 



Distribution. Seychelles Archipelago: Mahd, 1600 feet, many specimens; Mt. 

 Harrison at an altitude of 2000 feet; Trois freres, 1500 feet, 17 Nov. 1905 : Silhouette 

 a single specimen : Praslin on dry hills, five specimens. Desroches, very abundant. Coetivy, 

 seven specimens. Chagos Archipelago at Coin, Peros, and at Egmont, many specimens. 



This species was taken many years ago in Seychelles by Prof Mobius ; later M. Ch. 

 AUuaud found it at Mahe, at Praslin and in Madagascar ; also specimens were obtained 

 from Mauritius. In the British Museum, London, are preserved specimens from Cocos- 

 Keeling Island, taken in July 1902 by Mr Wood- Jones. 



2. Spherillo purpurascens, n. sp. 



Cuharis officinalis Stebbing, Willey's Zool. Results, 1900, p. 655. 



Ocull mediocres, oceUi magni, numero 13. 



Antennarum articulus 1 flagelli duplo brevior quam articulus 2. 



Trunci segmentum 1 margine laterali crasso, per totam longitudinem sulcato, post 

 inaequaliter sulcato : lacinia exterior multo major quam lacinia interior ; margo posterior 

 utrinque leviter incurvus. Segmentum 2 epimeris ante fissis, lacinia interiore brevi, 

 obtusa ; pronotum fere quarta) parti dorsi longitudine tequale ; margo posterior utrinque 

 levissime incurvus. 



