192 Mr. W. E. Collinge on 



traction. Posterior portion of the body conspicuously over- 

 hangs the caudal mucous pore (PI. IX. fig. 2). Rugas 

 faintly marked, elongated posteriorly. Peripodial groove 

 distinct. Foot-fringe and lineoles black. Foot-sole divided 

 into median and lateral planes, the latter being almost black 

 and the former yellow in colour. Caudal mucous pore a 

 vertical slit, which appears to extend to the foot-sole, such 

 appearance being caused by a little groove which is bounded 

 on each side by the foot-fringe (PL IX. fig. 1, b), which 

 extends halfway up the sides of the body (PI. IX. fig. 2). 

 The sides of the mucous pore are almost black. 



Length (in alcohol) 32 millim. ; breadth of foot-sole in 

 anterior region 5'5 millim. 



Hah, Lombok (1500 feet), Borneo {A. H. Everett). 



I have much pleasure in associating with this interesting 

 form the name of Mr. Hugh Fulton, who has so kindly 

 placed the material in my hands. 



Anatomy of the Generative Organs. 



The vestibule opens into the vagina, which is a wide and 

 almost straight tube. At its upper portion an almost ductless 

 receptaculum seminis opens; it is somewhat pyriform in 

 shape, reminding one of the condition which obtains in Par- 

 marion intermedium^ Cllge. (PI. IX. figs. 3 & 4, r.s.). The 

 penis exhibits two constrictions, which divide it into three 

 portions, viz. a beak-shaped head, with a narrower portion 

 below, and a globose proximal portion. The vas deferens 

 passes off from the ventral side of the beak-shaped portion as 

 in Parmarion intermedium^ the retractor muscle having its 

 attachment to the middle division. The free oviduct is a 

 large wide tube expanding just before it joins the common 

 duct, which latter is densely folded. The albumen-gland is 

 large and peculiar in shape (PI. IX. fig. 3, alb.gl.) and of an 

 orange-red colour. The hermaphrodite gland is a compara- 

 tively large glandular body hidden in the liver and attached 

 to the hermaphrodite duct, a long unconvoluted tube. The 

 dart-sac (PI. iX. fig. 3, d.s.) is a large thin-walled organ, 

 exhibiting a slight enlargement at its proximal end and a 

 fusiform head constricted off" from tiie main arm at its distal 

 end. Externally this upper portion was finely reticulated ; 

 whether or not this was due to the alcohol I cannot say. The 

 dart (PI. IX. fig. 5) is quite distinct in shape from that of 

 any other species I am acquainted with ; it consists of a 

 fusiform head and an elongated and almost circular lower 

 portion, narrowing slightly at its base. It is solid through- 

 out, non- calcareous, and has no opening or slit. 



