62 ON THE GENUS LATH AMUS. 



on which the urethra opens by a somewhat narrow aperture, just below 

 and in front of the opening into the secondary vagina*. In front of 

 this eminence the urine-genital canal, as the remaining part of these 

 organs may be called, is produced into a small cul-de-sac. The total 

 length of this canal is about 20 inchest ; the clitoris, which resembles 

 the same organ in E. indicus, and which has similar relations to the urino- 

 genital canal, is about 15 inches from the attachment of its crura to the 

 pelvis to its extremity. The glans clitoridis is about two inches 

 long, rounded anteriorly, flattened and grooved posteriorly, where it 

 is in contact with the urino-genital canal. There is a well-marked 

 preputial-like reversion of the integuments round the glans, as in 

 E. indic.us. 



The brain was removed with but little injury ; but its description 

 must be deferred till some future occasion. 



As will be seen from the foregoing account, but little difference, on 

 the whole, exists in the visceral anatomy of the only two remaiDing 

 species of Proboscideans. What differences there are chiefly relate to the 

 stomach, liver, and female organs ; but, till more specimens of E. africanus 

 have been dissected, it is impossible to say- how many of the points above 

 noticed are due to individual peculiarities or those of age and the like. 

 There appears, therefore, little ground, from an anatomical point of view, 

 to separate Loxodon as a genus from EuelepJias. 



P.z.S. 1879, 15. ON THE SYSTEMATIC POSITION OP THE GENUS 

 P- 166. LATHAMUS OP LESSONJ. 



(Plate I.) 



IN their paper on Australian birds in the Linnean Society's Trans- 

 actions for 1828 (vol. xv. p. 74), Messrs. Vigors and Horsfield established 

 a genus Nanodes, of which the Psittacus discolor of Shaw was made 

 the type, and full generic characters were given. Besides Nanodes 

 discolor, three other species (those now generally known as Melopsittacus 

 undulatus, EupTiema pulcJiella. and Platycercus venustus) were included in 

 the genus, which was considered by its authors to be allied to Pezoporus 



* This raised part, on which is the opening of the urethra, is probably identical 

 with the " Klappe" figured by Mayer (1. c. pi. vi. fig. 1) as existing between the two 

 orifices of the bladder and vagina. 



t In Perrault's adult example the length was 3 feet 6 inches. 



\ Proc. Zool. Soc. 1879, pp. 166-174, PI. XVI. Eead Feb. 18, 1879. 



White's Voyage, pi. 263 (1790). For the synonymy of the species, see Finsch, 

 Papag. ii. p. 863. 



