﻿270 The Philippine Journal of Science 1914 



with distinct regions; buccal cavity ball-shaped, with ten enlargements at 

 base; esophagus distinct, Indian-club shaped; stomach intestine greatly 

 convoluted. 



Male: 25 to 37 mm. in length by 1^ mm. in width. Anus at caudal 

 extremity. Inconspicuous rectangular bursa ; lobes 6 ; dorsal 2, latero-dorsal 



2, latero-ventral 2. Each half of bursa, 9 rays, arranged: dorsally 3, 1, 

 dorso-lateral 3, ventro-lateral 2. Spicules 2, equal, saberform, ca. 0.8 mm, 

 long; vesiculae seminales 2; vasa deferentia 2, and testicles 2; each vas 

 deferens with one testicle forming a long, white, convoluted tube about 

 26 mm. in length. 



Female: 37 to 40 mm. in length by 2 mm. in breadth. Tail curved, 

 obtuse, except for a conical tip. Lateral cuticular wings at caudal extrem- 

 ity. Anus ventral, 0.64 mm. from caudal extremity. Vulva 1 mm. forward 

 from anus. Uteri 2, vagina bicornate. Ovaries 2, oviducts 2, each ovary 

 with one oviduct forming a long, white, convoluted tube ca. 280 mm. in 

 length. Oviparous; eggs oval, 56 /* by 100 m; shell thin and smooth. 



THE INFECTION IN THE PHILIPPINES 



I am indebted to Dr. R. W. Newcomb, veterinarian in charge 

 of meat inspection in the Manila matadero, for data showing 

 the extent of infestation and distribution of the disease among 

 swine slaughtered in Manila. About 2,000 hogs were examined, 

 of which very nearly 50 per cent were found infested. Of the 

 animals slaughtered, approximately 20 per cent came from 

 Batangas and Bulacan Provinces, respectively, 15 per cent were 

 raised in Manila, while 10 per cent came from Cavite and Rizal 

 Provinces, respectively. The remainder came from Zambales, 

 Tarlac, Pampanga, and Nueva Ecija. 



Dr. A. S. Shealy examined 43 animals in the same matadero, 

 and found 50 per cent to be infected. A collection of lesions 

 containing these worms was furnished to me, and has been 

 useful in the preparation of this paper. 



I have been afforded the opportunity of observing the effects 

 of kidney-worm infestation among imported swine. The group 

 of 20 pigs forming the nucleus of the drove consisted of 5 from 

 Texas, 13 from Australia, and 2 from New Zealand. The im- 

 portation began in 1906 with 5 from Texas. 



The first definite diagnosis of kidney-worm infestation was 

 found in a Berkshire sow imported from Australia on December 



3, 1909. This animal died on December 3, 1911, two years after 

 its arrival at the farm. A Berkshire boar (No. 10) imported 

 from Australia in 1907 died on March 30, 1910. Upon inquiry, 

 I was informed that this animal became paralyzed in its hind 

 quarters shortly before death, which is a symptom of kidney- 

 worm infestation. 



From December 3, 1911, to April 22, 1912, covering a period 



