THE CARNIVOROUS SLUGS OF SOUTH AFRICA. 207 



Vascular System (PI. IX, fig. 29 ; PI. XXII, fig. 140).— 

 Pulmonary veins not very numei'ous ; no " posterior aorta " ; 

 two main arteries of liver arising from anterior aorta as a 

 single vessel, posterior artery supplying hermaphrodite gland 

 as well as posterior division of liver ; anterior aorta passing 

 to right of intestine. 



Reproductive System (PI. XXIII, figs. 147, 151).— 

 Hermaphrodite gland oblong, with moderately large follicles; 

 hermaphrodite duct rather more convoluted and swollen in the 

 middle than in the other species ; common duct rather short, 

 curving twice to the right and twice to the left; vagina 

 broader than iu A. gibbonsi; receptaculum semiiiis small; 

 receptacular duct much swollen anteriorly, the swollen part 

 being attached to the adjacent body-wall by short transverse 

 muscles on each side. Vas deferens becoming slightly 

 swollen near the posterior half of the penis to form an 

 epiphallus ; penis short, broadened posteriorly ; penial 

 retractor also short. 



Habitat. — Port Shepstone, Natal (Burnup) ; Town Bush, 

 Pietermaritzburg (on a mossy stone ; Mrs. Wan-en) ; Equeefa, 

 Natal (Burnup). 



Type. — The type is in the British Museum. Other specimens 

 will be found in the Natal Museum, Pietermaritzburg. 



AFFiNrriES, ETC. — This species may be distinguished at a 

 glance from young specimens of any of the forms of Apera 

 gibbonsi by its dark lateral bands, while the absence of 

 keels sepai-ates it from the other species found in Natal. 

 Internally it dift'ers widely from A. gibbonsi and A. 

 parvain its radula, buccal retractor, oesophagus, liver, 

 receptacular duct, etc. ; while in no other species is the pedal 

 gland so broad in front and so slender behind. 



This species was fiist discovered by Mr. Burnup in March, 

 1903. 



Apera purcelli Collinge. 



Apera puvcelli Cllge., Ann. S. Afr. Mus., 1901, vol. ii, p. 230, pi. 

 xiv, figs. 1, 2 ; Connolly, Ann. S. Afr. Mus., 1912, vol. xi, p. 63. 



