4 PROCEEDINGS OF THE NATIONAL MUSEUM vol.80 



HASTOSPICULUM VARANI Skrjabin, 1923 



Plate 3, Figxires 6, 7 



Description. — Hastospiculum: Large filarids characterized by a 

 special ornamentation of the head ; mouth oval, bearing on each side 

 a distinct lip arising from a wide base. Surrounding the mouth 

 there is an epaulettelike structure situated dorsoventrally, bearing, 

 according to Skrjabin, 10 papillae, of which 2 are the so-called lateral 

 papillae or amphids, and 8 are the submedian papillae. The epau- 

 lettes are joined dorsally and ventrally by a cuticular band. The 

 cylindrical esophagus is 17 mm. in length. 



Male^ 135 mm. to 140 mm. long and 680/* maximum breadth. Tail 

 surrounded by a pair of alae supported by six pairs of preanal 

 papillae (the last two pair may be adanal) and two pairs of postanal 

 papillae. Skrjabin does not state whether the latter also support the 

 alae. Spicules unequal; the left is 4.4 mm. long, bearing lancelike 

 expansion at the tip, and the right is 660/a long and is bow-shaped. 

 From the figure one would judge that the left spicule is compara- 

 tively strong and not delicate as in E. setiferuvi and H. gouldi. 



Female., unknown. 



Host. — Varanus griseus. 



Location. — Under the peritoneal lining. 



Distribution. — Russian Turkestan. 



HASTOSPICULUM GOULDI Yorke and Maplestone, 1926 



Plate 3, Figitbes 8-11 



Description. — Hastospiculmn: Mouth opening, arrangement of 

 papillae, and other head structures as in H. varani. 



Male., about 180 mm. long. Anterior portion of the esophagus 

 300/A long, posterior portion 9.4 mm. long. Spicules unequal, the 

 longer (left) being 1.1 mm. long and the shorter (right) 200/i long. 

 Left spicule slender, delicate, and filiform or setaceous. A pair of 

 caudal alae meet posteriorly and surround the tail. There are three 

 pairs of large pedunculated preanal papillae, two pairs of smaller 

 preanal papillae situated more subventrally, and one pair of large 

 pedunculated postanal papillae. On the midventral line there are 

 two conical processes, the first near the cloaca, the second near the 

 tip of the tail. From the figure, as given by Yorke and Maplestone, 

 there appear to be other papillae on each side of the posterior 

 conical process. 



Female., about 180 mm. long. Anterior portion of esophagus 

 about 300/A long; posterior portion of esophagus, 16 mm. long. 



