736 



ARTHROPOD A 



merely encysted in the lungs and liver, but moving freely through the 

 peritoneal cavity and in the small intestine. Sambon considers that 

 the eggs pass from the snake into water, and thence -into animals 



Fig. 357, ■ — Posterior End 

 OF Porocephalus armillatus 

 Wyman. (X 5.) 



(After Sambon.) 



Fig. 358. — Nymph OF Porocephalus 

 armillatus Wyman, encysted 

 IN THE Liver. 

 (After Sambon, from our West 

 African case.) 



and man while drinking, and become larvae and nymphse, which 

 later gain access to the snake when the host is killed and eaten. 

 Pathogenicity.— This will be described later (Chapter LXXXIII.)- 



Porocephalus moniliformis Diesing, 1836. 



Synonyms — -Adult. — Pentastoma moniliforme Diesing, 1835; P. 

 monilifornte Leuckart, i860; Linguatule moniliforme Megnin, 1880; 

 Porocephalus moniliformis Stiles, 1893. Nymph. — Pentasiomum 

 tornatum Creplin, 1849, parte; P. aonycis Macalister, 1874; 

 Porocephalus armillatus Stiles, pro parte. 



Porocephalus with twenty-six to thirty-one rings. 



Remarks. — ^This parasite, which was discovered by Czermak in 

 the lung oi Python molurus Linnaeus in 1828, and was first described 

 by Diesing in 1835, has been carefully studied by Sambon, who 

 remarks that it so strikingly resembles P. armillatus in general ap- 

 pearance and structure that at first sight it mav be easily mistaken 

 for it. 



Morphology. — -It is more slender, tapers more caudad; with 

 twenty-six rings in the male and twenty-eight to thirty-one rings 

 in the female. In fresh specimens it is bright lemon yellow in colour, 

 with genital opening on the mid-ventral surface of the first body- 

 ring in the male, and on the mid-ventral surface of the terminal 

 body-cone i millimetre in front of the anus in the female. The anus 

 is terminal. 



Life-History — The life-history is unknown. 



Hosts. — ^The hosts of the adult are Python molurus Linnaeus (the 

 Indian python), Python reticulatus Schneider (the reticulated python), 

 in which it lives in the lungs ; while the hosts of the nymph are man, 

 monkeys, tigers, leopards (?), civets, otters, and dogs (?). 



Distribution. — India, Indo-China, Southern China, the Philippines, 

 Sumatra, Java. 



