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Show 1895.] HEMIPTEEA-HOMOPTEEA OF T H E ISLAND OF ST. VINCENT. 55 Fig. 5. Lagena marginata (Walker and Jacob), var. catenulosa, nov. (p. 28): a, lateral aspect (at pp are shown parasitic-alga-borings in the shell-flange) ; b, oral aspect. X 17. 6. Nodosaria (Dentalina) soluta, Reuss, var. subaculeata, nov. (p. 3). X 10. 7. Biloculina tubulosa, Costa (p. 7). An abnormal specimen with two apertures. X 16. 8. Amphistegina radiata (Fichtel and Moll) (p. 45) : a, lateral aspect; b, peripheral aspect. X 10. 9. A. radiata (F. & M.) (p. 45). A transverse section showing the asymmetrical habit of growth in the successive layers of whorls, the non-tubulate umbonal centres, and the somewhat irregular overlapping of the whorl-layers on both sides of the shorter axis. X 14. 10. A. radiata (F. & M . ) (p. 45). Small portion of a median horizontal section of the test, showing at a a two septa traversed by the canal-system ; below this at b is the marginal cord of the preceding whorl with its canal-system. X 135. 11. A. hauerina, d'Orbigny (p. 46). Part of a septum, showing interseptal canals at a. This is taken from a typical fossil specimen of Amphistegina from the Vienna Basin, for comparison with the recent form, A. radiata (F. & M.). X 520. 12. A. radiata (F. & M.) (p. 45). One of the chambers of the peripheral whorl in a median horizontal section, enclosing a young individual consisting of two chambers. X 135. 2. A n Enumeration of the Henri ptera-Homoptera of the Island of St. Vincent, W.I. By P. R. U H L E B. (Communicated by Dr. D. SHAEP, F.R.S., F.Z.S., on behalf of the Committee for investigating the Flora and Fauna of the West-Indian Islands 2) [Received November 16, 1894.] The Homoptera of St. Vincent, collected by Herbert H. Smith, constitute an assemblage of forms mostly small and neat, which offer a striking contrast to the large and showy insects that inhabit the regions of the South-American continent a few hundreds of miles away. It is not, however, to this nearest part of the continent that we must look for the source of distribution from whence this assemblage was derived. The Mexican character of the fauna seems unquestionable. Fam. CICADIDJE. Genus PBOABNA, Stal. PEOAENA HILAEIS, Germ. Silb. Rev. Ent. ii. p. 69, 34. Numerous specimens were collected at various localities in the island. The individuals are of different sizes, the males being 1 [The Hemiptera-Heteroptera of St. Vincent have been described by Prof. Uhler in the P. Z. S. 1893, pp. 705-719, and 1894, pp. 156-160. The species of Meinbracidie, described by Dr. Goding, and mentioned postea p. 57, form also part of the collections transmitted by the Committee to N. America for examination.-D. S.] |