296 



what as in the case of A. zanzibarica (dissected by the authors) and other 

 members of the genus Achaiina. It is, however, round and tumid instead of 

 pear-shaped as in Achaiina. Liver flat, leaf -shaped, as is typical of many 

 mollusks bearing bulimoid shells. 



Genitalia are nearest like those of Limicolaria, but differ in several points. 

 Genitalia simple, without accessory organs. Penis thick, moderately long, 

 and curved downward very much as in Lirnicolaria^ enveloped in rather thick 

 sheath. Penial retractor, terminal, short, inserted through the sheath and 

 merging with penis at distal end, inserted on the diaphragm as in Limicolaria. 

 In Achatina the penis is almost straight and curved slightly backward at the 

 distal end, while the retractor muscle in all species heretofore dissected is a 

 branch from the right ocular band. Vas deferens entering the sheath at about 

 two-thirds the distance from the base of the penis; very long, coiling more 

 than half way around vagina before coming into juxtaposition with uterus, 

 and enveloped throughout its whole length by thin transparent membrane. 



Fig. 2. Genitalia of Euaethiops loveridgei, showing penis with himen partly removed 

 (lower right) and uterus incised on oviducal side (upper left); E. d., albuminiparous 

 gland; z, hermaphrodite duct of ovotestis; u, uterus; ov., oviduct; R. f., spermatheca; 

 V. d., vas deferens; p. penis; r. penial retractor. 



