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Show 1903.] GEOGRAPHICAL DISTRIBUTION OP SriDERS. 361 Ethiopian Region. (Africa south of the Sahara, South Arabia (Sokotra), and Madagascar.) Dipluridse. Diplurinse. Hapalothele : Madagascar. 1 p erh the iSame. Brachythefoscus'. fc>. Arnca. J Macrothelinse.-Evagrus : S. Africa. Ischnothele : Madagascar, S. & W. Africa. Atypidse.-Calommata : W. Africa. Cyrtaucheniidae.-Hermacha, Hermachastes, Lepthereus, Pionothele, and Spiroctenus : S. Africa. Genysa : Madagascar. Pelmatorycter : S. Africa. Microbatesia: W. Africa. Bessia, Stictogaster, and Homostola : S. Africa. Aporo-ptychus and Ancylotrypa : W. Africa. Ctenizidce.-Stasimopus: S. Africa. Icliops : E., W., & S. Africa. Heligmomerus: E. & S. Africa. Gorgyrella : S. Africa. Migidae.-Moggridgea: S. Africa, Sokotra. Myrtale and Thyro-ponus : Madagascar. Baryclielidai.-A trophothele: Sokotra. Enbrachythele, Pisenor, and Pisenorodes : E. Africa. Cyphonisia : W. Africa. Brachionopus : S. Africa. Forsythula : Madagascar. Tigidia : Mauritius. Sason: Seychelles. Aviculariidie. Aviculariince.-Scodra, lleteroscodra, and Selenogyrus : W. Africa. Heterotliele : W. & E. Africa. Solenoihele : W. Africa. Eumenophorinje.-Ilysterocrates : W. Africa. Loxomphalia : E. Africa. Phoneyusa and Pelinobius : W. & E. Africa (probably identical). Citharischius : E. Africa. Batesi-ella: W. Africa. Anoploscelus: E. Africa. Mono-centropns: Sokotra, S. Arabia. Encyocrates: Madagascar. Harpactirinse.-Pierinochilus: E. & S. Africa. Eucrato-scelus: E. Africa. Ceratogyrus, Codogenium, llarpac-tirella, and Ilarpactira : S. Africa. Of the 54 above-mentioned genera, all are peculiar to the Region, with exception of Evagrus, Ischnothele, Idiops, and Hermacha, which also occur in South America; Sason, Idiops, Ischnothele, and Calommata in the Oriental Region; possibly also with the exception of Ancylotrypa and Moggridgea, if the former is identical with the South-American Bolostromus, and the latter with the New-Zealand Migas. Apart from its distinctive genera, the Region is essentially characterised by the two subfamilies of Aviculariidie, the Eumeno-phorinae and Harpactirinse, which are peculiar. The fauna of Madagascar does not seem to warrant the ascription of more than subregional importance to this island. Apart from the occurrence of Ischnothele in India and Madagascar, and the relationship between Diplothele arid Forsythula, |