58 A. K. SHTPLEY 



DiAGNosis. — « Corpus lanceolatum, retrorsum attenuatum, rec- 

 tum ventre planiusculum. Caput rotuadatum, stigraatibus destitu- 

 tum. Céphalothorax parum distinctus. Annuli corporis c. 90, 

 stigmatibus unicam sériera in medio dorso ventreque interruptam 

 formantibus. Hamuli sensim acuminati, basin versus inflati, fulcro 

 elongato retrorsum attenuato insidentes. Longitudo feminae 80- 

 85 mm. (usque ad 100), latitudo corporis anterioris 8-10 mm., 

 posterioris 2 mm. ; longitudo maris 18-20 mm, latitudo ant. 3 mm., 

 post. 0,5 mm. 



» Status imperfectus (= Peut, denticulatum Rud . et P. serratum 

 Rud.) annulis bene fimbriatis hamuloque accessorio naviculam 

 terminalem mucronatam gerente distinctus 4,5-5,5 mm. in longi- 

 tudinem, 1,5 mm. in latitudinem habet. » — Leuckart. 



Habitat. — The adult form is found in the frontal sinuses of 

 Canis familiaris, Equus caballus and Felis onca ; in the nasal cavi- 

 tles of Canis familiaris, C. lupus, C. vulpes, Capra sp., Equus 

 caballus, Homo sapiens, the Mule, and Ovis aries ; in the trachea in 

 Felis onca. 



ïhe larval forms hâve been found in or on the liver of Capra sp., 

 the Cat, Cavia Cutleri, Equus caballus ; in the lungs of Bos taurus, 

 the Cat, Ca/cia Cutleri, Hystrix cristata, Lepus cuniculus, and L. timi- 

 dîi.s ; in the liver and connective tissue of the small intestine in 

 Homo sapiens ; in the mesenteric glands of Bos taurus, Camelus, 

 Capra s\)., Ovis aries, as well as in the Bubaline Antelope {Alcela- 

 phus bubalinus), Cervus dama and Mus decumanus. 



1. — PoROCEPHALUS ANNULATUS Baird (1). 



Synonym. — Pentastomum multicinctum Harley (2). 



DiAGNOsis. — « Body white, elongate-cylindrical, nearly of the 

 same size at each extremity, strongly ringed : rings raised, about 

 twenty-eight in number, one Une distant from each other. A dark 

 blue line runs throughout the whole length of the body on one 

 side. Circumference of the body 5 fines, length of body 2 l/4inches. » 

 — BAmn. 



(1) Proc. Zool. Soc, part XXI, 1853, p. 22, pi. XXX, fig. 7 and 7a. 



(2) Ibidem, part XXV, 1857, p. 115, pis. XLVI and XLVII. 



