100 SPOLIA ZEYLANICA. 



the cuticle is smooth ; the short oesophagus occupies in the male 

 -jJy, in the female i._, of the body length ; the posterior half 

 expands to form a bulbus with valves ; the nerve collar surrounds 

 the oesophagus approximately in the middle at its thinnest 

 portion ; the poms excretorius discharges below the middle of the 

 oesophageal bulbus in the female 0*39 mm. from the head end. 

 Along the dorsal surface of the oesophagus occurs a gland, the 

 duct of which lies at the dorsal side of the mouth opening ; 

 shortly before the orifice is reached the duct expands into a vesicle. 

 The intestine has a thick lining membrane which is united with 

 the outer or basement membrane on each side. The lateral ridges 

 occupy the 10th part of the periphery of the body wall and 

 project inwards far beyond the musculature ; they are divided by 

 a septum into a dorsal and a ventral half, and at the inner edge of 

 the septum there is a canal with triangular lumen. 



The material consisted of a very large number of females with 

 only one male, which was 5*9 mm. in length and 0'33 mm. 

 in diameter ; the bursa is trilobed, the unpaired median dorsal lobe 

 is supported by a forked rib, the inner fork again divides at the 

 end ; the lateral lobes have four ribs each, of which the anterior 

 is double, while the others arise from a common root ; the thin 

 cirri measure 0*37 mm. 



The female attains a length of 19 mm. with a breadth of 

 0*51 mm. ; the vulva is circular and rather prominent, lying 

 behind the middle, and dividing the body in the proportion of 18 : 

 5 ; the eggs measure 0*057 mm. by 0*036 mm. 



The genus KaUcejJhalus was established by Molin,* who described 

 seven species from Brazil, of which one was figured, viz., K. 

 inermis. One of Molin 's seven species, K. appendiculatus, was 

 subsequently re-discovered by Stossich,t who also described an 

 eighth species under the name Strongylus ersilice.X from the 

 Indian Python molurus. The species here described is therefore 

 the ninth of the genus. 



OXYURIS. 

 Belongs to the Meromyaria and the Secernentes. The oeso- 

 phagus is long, terminating in a bulbus containing valves ; male 

 with one cirrus ; frequently three papilla3 on each side of the tail ; 

 female with long acuminate tail ; eggs generally asymmetrical ; 

 the species live in mammals, amphibia, reptiles, insects, and 

 myriopods. 



* II sottordine degli Acrofalli. Mem. Ist. Venet., vol. IX., Venice, 1861, pp. 

 114-125, tab. VII., figs. 1-3. 



t Boll. Soc, Adriat., vol. XX., Trieste, 1900, pp. 2, 3, tab. I., figs. 7, 8, tab. II., 

 fig. 9. 



X /hid., vol. XVII., 189(;. p. 124. tab. IV., figs. 11-13. 



