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Show 196 MESSRS. BRUNNER AND REDTENBACHER ON [Mar. 15, as for example in the type, unites below the ramus of the mandible into that running down from the ear, those of both sides uniting again on the throat. Throat apparently without a tuft. Oryx beisa and O. gazella, the only two species at all allied to 0. callotis, both have their ears broadly rounded and quite short-haired at the tips, and both have the ground-colour of the face white, characters which readily separate both of these from the species now described. On the whole O. callotis is more nearly allied to 0. beisa, O. gazella being distinguished from both of them by its throat-tuft, its larger and more widely expanded horns, and the different characters of its face-markings. The type specimen has horns 23| and 22 inches in length, but the horns are frequently much larger. Sir John Willoughbyl says, " The horns of a female measure from thirty to thirty-two inches; those of the male are thicker, but a few inches shorter." Mr. Thomas expressed the hope that complete specimens of this handsome inhabitant of the Imperial British East African Company's territory would soon be obtained for the National Collection. The following papers were read :- 1. On the Orthoptera of the Island of St. Vincent, West Indies. By C. B R U N N E R V. W A T T E N W Y L and Professor J. REDTENBACHER2. [Received February 17, 1892.] (Plates XV.-XVII.) At the request of the joint Committee appointed by the British Association and by the Royal Society to investigate the Fauna and Flora of the West Indian Islands, Herr Hofrath Carl Brunner von Wattenwyl has been so good as to undertake the examination of the Orthoptera obtained in the Island of St. Vincent by Mr. H. H. Smith, the naturalist sent thither by Mr. F. D. Godman, F.R.S., to assist the operations of the Committee. Herr Brunner obtained the help of Prof. J. Redtenbacher, and the present memoir gives the result of their study of the material submitted to them. Herr Brunner, when sending to me the M S . of this paper, requested me to write an introductory notice in our own language; 1 have complied with his wish with the greater pleasure as giving me an opportunity on behalf of the Committee of publicly thanking him, as well as Prof. Redtenbacher, for the careful study they have made of these insects. I have also been able to supplement 1 ' East Africa and its Big Game,' p. 288 (1889). 2 [Communicated by Dr. D. SHARP, F.R.S., F.Z.S., on behalf of the Committee for investigating the Fauna and Flora of the West Indian Islands.] |