924 



MR. G. M. VEVBRS ON CESTODA FROM MABIMALS 



Oyclorchida crassivesicula, sp. n. (Text-figs. 11, 12.) 



Host. Paradoxurus hermaphroditus (Pallas). 



Locality. Malay States. 



Habitat. Small intestine. 



Length of strobila 16-20 cm. Maximum width 1-75 mm. 



The head is 250 p long by 280 /x broad. There are four suckers, 

 each measuring 100 /x in diameter. In front of the suckers there 

 is a i-ostellum 100 fx in length and 200 p broad at the base. The 

 I'ostellum is armed with a double crown of ten large and ten 

 small hooks which interdigitate one Avith the other. 



The large hooks measure 65 p. in length from the point of the 



Text-figure 11. 



Cyclorcliida crassivesicula, sp. n. Scolex. 



hook to the end of the haft, and 27 p from the point of the hook 

 to the end of the guard. 



The small hooks measure 43 p from the front of the hook to 

 the end of the haft, and 13 /x from the point of the hook to the 

 end of the guard. 



The hook portion is relatively very small compared with the 

 basal portion formed by the haft and guard. The neck is 

 500 ju long by 180 ^u broad. The first segments are equal in 

 width to the neck, and are very short, gi^adually increasing in 

 both dimensions to the posterior end of the strobila, where they 

 measure "5 mm. in length by 1-75 mm. in breadth. 



Ill shivpe the segments are trapezoidal, broader than long, the 



