14 MB. B, TEIMEN ON BUTTEEFLlES PBOJl [Jan. 16, 



Pirate III. 



Figs. 13-15 represent transverse sections through the snout of Stage II. 

 Fig. 13. Through the external nostrils. 



14. Through about the middle of Jaoobson's organ. 



15. Through the septal gland, niaxillo-turbinal, and 1st ethtno-turbinal 



(" naso-turbinal "). 



16. Jacobson's organ from the section represented in fig. 14, more highly 



magnified. 



17. Transverse section of the snout of a young Ornithorhi/nchiis slightly 



larger than Stage II. of Echidna. The section passes through 

 Jacobson's organ behind the naso-palatine duct, and is drawn for 

 comparison with fig. 14. 



alii. Ali-uasal cartilage. 

 aln.tb. Ali-nasal " turbinal." 

 c. Caruncle. 

 c.n. External nostril. 

 e.tb. Ethmoturbinals. 

 h. Horny layer of snout. 

 hr. Hairs. 

 h.t. Horny teeth. 

 Ja. Jacobson's organ. 

 Ja.c. Cartilage of Jacobson's 



organ. 

 Ja.d. Duct of Jacobson's organ. 

 Ja.gl. Gland-tubes of Jacobson's 



organ. 

 Ja.n. Nerves of Jacobson's organ. 

 Ja.tb. " Turbinal " of Jacobson's 

 organ. 

 m. Mouth-cavity. 

 mn. Lower jaw. 



List of Abbreviations. 



m.tb. Maxillo-tnrbinal. 

 «.(,■. Nasal cavity. 

 n.d. Naso-lacrymal duct. 

 n.gl. Small glands of the nose. 

 np.c. Naso-palatine canal. 

 p.gl. Palatine (sweat) glands. 

 r. Ridge on septum nasi. 

 rs. Cartilaginous rostrum or 



floor of nasal chamber. 

 s.n. Septum nasi. 

 sp.gl. Septal gland. 

 sp.gl.d. Ducts of septal gland. 

 sp.gl.d'. Duct of septal gland which 

 enters Jacobson's organ. 

 St.gl. Steno's gland. 

 sw.gl. Sweat-glands. 

 t. Tongue. 

 vo. Vomer. 



2. On a Collectiou of Butterflies made in Manica, Tropical 

 South-east Africa, by Mr. F. C. Selous, in the year 

 1892. By Roland Trimen, F.R.S., &c.. Curator of the 

 South- African Museum, Cape Town ^. 



[Eeceived November 13, 1893.] 



(Plates IV.-VI.) 



In communicating to the Zoological Society this account of what 

 I believe to be tbe first collection of Butterflies made in the 

 Manica Country, I am fortunate in being able to preface it by the 

 following interesting sketch of that hitherto very little-known 



' Mr. A. G. Butler, who, in Mr. Trimen's absence, has kindly corrected the 

 proofs of this paper, sends the subjoined remarks : — 



" I think it would be well to call your attention to the fact that Mr. Trimen 

 has unwittingly redescribed some of the species recorded in my paper on 

 Mr. Johnston's collections froni Nyasaland (P. Z. S. 1893, p. 643) not yet pub- 

 lished. For example, the Charaxes (p. 45) which he calls C. seloiisi is palpably 

 only a slight variety of my C. whytci (op. cit. p. 649) , Lycaiia excltisa (p. 47) 

 is evidently the male of my Castalius hypoleucus {pp. cit. p. 660) [X.B. Trimen 

 does not adopt the modern genera proposed for the Li/cceiuitce] ; Cydopides 



