NO. IO COCKROACHES—ROTH AND WILLIS 95 
Experimental intermediate hosts—The following were apparently 
infected with both P. elegans and P. spirula: Blaberus fuscus and 
Leucophaea maderae, Netherlands (Brumpt and Desportes, 1938) : 
Both species successfully infected. 
Blatta orientalis and Periplaneta americana, Netherlands (Brumpt 
and Desportes, 1938) : The worms did not develop in either species of 
cockroach. 
Natural definitive hosts—Monkeys (Callithrix chrysolevea, Saimiri 
sciurea, Midas rosalia, Mystax rosalia, Mystax ursulus, and Oedipo- 
midas aedipus) (Brumpt and Urbain, 1938). Lemurs (Lemur fulvus, 
L. fulvus albifrons, L. mongos, L. macao, and L. catta), Cebus apella, 
and Cheirogaleus major (Brumpt et al., 1939). 
Experimental definitive hosts—The following were infected by 
feeding on B. germanica that contained larvae of both P. elegans and 
P. spirula: Baboon (Papio papio), cat, hedgehog (Erinaceus euro- 
paeus), macaque (Macacus rhesus), fox (Vulpes vulpes), and badger 
(Meles meles) (Brumpt and Urbain, 1938, 19384). 
Prosthenorchis spirula (Olfers in Rudolphi, 1819) Travassos, 1917 
Disease.—Intestinal parasite of the definitive hosts. 
Natural intermediate hosts.—Blattella germamica, France (Brumpt 
and Urbain, 1938, 1938a; Brumpt et al., 1939) : See comments follow- 
ing these citations under Prosthenorchis elegans. Netherlands (van 
Thiel and Wiegand Bruss, 1946, 1948): 5 of 11 cockroaches were 
naturally infected in a monkey house. 
Experimental intermediate hosts.—Blattella germanica, Netherlands 
(van Thiel and Wiegand Bruss, 1946, 1948): 13 of 17 insects were 
infected with from 1 to 3 or 6 to 12 larvae in different stages of de- 
velopment. 
Periplaneta americana, Netherlands (van Thiel and Wiegand Bruss, 
1946, 1948): The parasite did not develop in any of the 45 cock- 
roaches of this species that were fed infective meals. 
See also species experimentally infected with Prosthenorchis 
elegans. 
Natural definitive hosts—Monkeys (Midas rosalia, Cebus apella, 
Callithrix jacchus), coati (Nasua narica), lemurs (Perodicticus potto, 
Lemur coronatus, Lemur fulvus), and Inuus sylvanus (Brumpt and 
Urbain, 1938). Chimpanzee (van Thiel and Wiegand Bruss, 1946). 
Experimental definitive hosts—See under Prosthenorchis elegans. 
