77 [Vol. xii. 



eisa; gutture, collo antico, pectoris lateribus, axillari- 

 busque griseo-brimneis, notaeo pallidioribus ; prajpec- 

 tore medio et gastrao toto reliquo albis; subalaribus 

 griseo-brunneis, apicibus albidis ; rostro pedibusque 

 nigris. Long. tot. circa 130 mm., alte 103-109, caudae 

 54-57 (incis. 8), metatars. 10. 

 Flab. Angola, ad Humeri Cuanza. 



Obs. This very interesting Sand-Martin differs from C. 

 paludicola in being paler, especially on the throat and sides 

 of the chest, while the middle of the chest is white up to the 

 lore-neck. In both C. minor and C. mauritanica the grey 

 of the throat extends to the chest, and the tail is less deeply 

 cut out, while C. minor is decidedly smaller. C. mauri- 

 tanica is extremely close to C. minor, but not to C. paludi- 

 cola, and differs from C. minor in being larger, but is very 

 little paler at all, if specimens procured at the same time of 

 the year are compared. 



C. pembertoni is named after Mr. Hubert C. Pemberton, 

 who collected four specimens atDondo on the Cuanza River, 

 on June 8th, 1901. 



Mr. Hartert further exhibited specimens of Textor riiger, 

 collected at Hector Spruit, in the Transvaal, by Lt.-Col. W. 

 Giffard, showing the remarkable development of the penis 

 peculiar to the species of the genus Textor. This penis was, 

 as far as he was aware, unique among the Passeres, a visible 

 penis in birds being generally unknown to exist, except in 

 Strut hionidce and Anatida and a few other large birds. 

 There was nothing to be found in recent literature about 

 this penis, but Lesson (Traite d'Orn. 1831, p. 433) had 

 already described it fully, saying : " Le male de cette 

 espece offre la particularite tres remarquable d'avoir une 

 verge longue de quatre a six lignes, et de Pintroduire dans 

 le cloaque de la femelle. . . Cette verge est tres apparente 

 dans les peaux, mais surtout tres visible chez les individus 

 vivans." Afterwards Riippell and Heuglin had shortly 

 mentioned the fact, quoting Lesson. The Kafirs of the 

 Transvaal were not aware of the nature of this growth, saying 

 that it is used to carry sticks to the nest and to hang 



