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Show 28 MR.' F. E. BEDDARD ON EARTHWORMS [Jan. 5, three other processes and a membranous expansion on the posterior aspect of the appendage. Length up to 13 millim., width P6. Closely allied to, if not identical with, B. proximus of Latzel from the Azores. H a m m a m R'irha. This is probably the species that Lucas records as Polydesmus complunatus. STRONGYLOSOMA GUERINII, Gerv. Stronyylosoma guerinii, Gerv. Ann. Soc. Ent. Fr. iv. p. 686. H a m m a m R'irha. This species was originally described from Madeira, whence the British Museum has examples. It is widely distributed in the Atlantic Islands, occurring both in Teneriffe and the Bermudas. I suspect that this is the species which Lucas identified as S. pallipes (Oliv.). Fam. IULID^E. lULUS FUSCO-UNILINEATUS, Lucas. Kherrata, H a m m a m R'irha, Constantine. IULUS DISTINCTUS, Lucas. Constantine. The synonymy of these two species of Iulus requires reinvestigation. Fam. PoLYZONIDiE. D O L I S T E N U S SAVII, Fanz. H a m m a m R'irha. This interesting Millipede is a great rarity. It has been found in Italy, but is new to the African shore of the Mediterranean. The repugnatorial pores begin on the fifth somite. 3. O n the Earthworms collected in Algeria and Tunisia by Dr. Anderson. By F R A N K E. BEDDARD, M.A., Prosector to the Society. [Received January 5, 1892.] As nothing appears to be known of the Earthworms of the northern part of the African Continent, excepting Egypt, I am very glad to have had the opportunity, afforded me by Dr. Anderson's kindness, of examining a small collection made by him during the spring of last year in Algeria and Tunisia. Earthworms show in so very plain a manner the effect of barriers to dispersal in their distribution, that I had expected to find the Algerian forms identical with or closely allied to those of Europe. The Earthworm-fauna of Central and South Africa is evidently very |
