PHILOMETRIDAE 209 



near the mouth. A pair of small, blind, subventral glands 

 also present. Anus non-functional in adult, the posterior 

 end of the intestine being joined to the body-wall by a solid 

 column of cells. Tail of male truncate, with a pair of large 

 lateral processes posteriorly. Cloacal aperture terminal. 

 Spicules equal, sharply pointed. Accessory piece large and 

 well-developed. Testis single. Tail of female short and 

 bluntly rounded. Vulva at about the posterior third of the 

 body. Vagina apparently functional only in very young 

 females, subsequently losing its connection with the uterus. 

 Uterine branches form a continuous tube. Ovaries short, 

 usually reflexed. 



Hab. Adult in body-cavity and genital glands of Fishes ; 

 larva, at least in some cases, in body-cavity of Copepods. 

 Genotjrpe : P. [Filaria] globiceps (Rudolphi, 1819). 



Rudolphi, 1819, Entozoorum Synopsis, 7, 215 ; Costa, 1846, 

 Ann. Accad. d. Aspiranti nat. di Napoli, iii, 80 ; Diesing, 

 1861, Sitz. k. Akad. Wiss., Wien, xlii, 620, 698; Schneider, 

 1866, Monographic der Nematoden, Berlin, 175 ; WiUemoes- 

 Suhm, 1871, Zeitschr.f. Wiss. Zool., Leipzig, xxi, 190; v. Lin- 

 stow, 1902, Arch. f. mikr. Anat., Ix, 223; zur Strassen, 1907, 

 Verh. deutsch. zool. Ges., Leipzig, xvii, 110. 



2. Micropleura v. Linstow, 1906. 



Cuticle without striations, but with irregularly-distributed 

 longitudinal series of from two to seven minute tubercles. 

 Two lateral and four submedian cephalic papillae present. 

 Oesophagus with a short anterior muscular portion and a long 

 and wider posterior glandular portion. Tail of male * conic- 

 ally tapering, with a single, somewhat interrupted, transversely 

 striated ala on the right side, in the preanal region only. 

 Seven pairs of subventral caudal papillae present, of which 

 four are postanal and three preanal. Spicules short, equal, 

 very slender and tapering to fine points. A well-chitinized 

 accessory piece present. Tail of female bluntly rounded, with 

 a pair of very large, prominent subventral papillae. Vulva 

 slightly in front of the middle of the body, very inconspicuous. 

 Vagina very short, non-muscular near the vulva. Uterine 

 branches directly opposed, very wide. Ovaries relatively very 

 short, usually reflexed. Embryos hatching in utero. 



Hab. Body-cavity and serous membranes of Reptiles (one 

 species known). 



Genotjrpe : M. vivipara v. Linstow, 1906. 



v. Linstow, 1906, Journ. Proc. Asiat. Soc. Bengal, Calcutta, 



* The description of the male given by v. Linstow refers, in all 

 probability, to a different worm. The description followed here is 

 that of Baylis (1924). 



SYN. NEM. P 



