278 
Pentastomicls 
other was much smaller and measured 9 mm. long and 1 mm. broad. 
The fragment was the same breadth as the bigger specimen and about 
two-thirds as long. The body is slightly curved. 
The skin is extremely transparent and thrown in a thousand puckers 
and furrows which gives the animal a “ bubbly ” sort of facies. These 
puckers make it impossible to count the anterior rings. I should 
estimate the number of rings as about forty in number as in some 
specimens I examined in Vienna some years ago. The last is a long 
one and is preceded by some four or five which remain clearly re¬ 
cognizable. The form of the chitinous ring surrounding the mouth and 
of the hooks is very characteristic. The hooks are borne on projections 
like little tumuli which stand out from the head. These specimens 
also came from the lungs of Varanus exanthematicus, a new host for 
the species. 
In conclusion it is worth mentioning that von Linstow has recently 
described a new species of Porocephalus, P. indicus, von Lins., from the 
trachea and lungs of a Gharial (Gavialis gangeticus, Geoffr.) which died 
in the Zoological Gardens, Calcutta. 
REFERENCE. 
von Linstow, 0. (1906). Parasites from the Gharial (Gavialis gangeticus , Geoffr.). 
Journ. and Proc. Asiat. Soc. Bengal. New Ser. 2, 1906, pp. 269—271. 
\ 
EXPLANATION OF PLATE XX. 
Fig. 1. Linguatula subtriquetra, Diesing, x 2 5. Dorsal view. 
Fig. 2. The same, x 2-5. Anterior view, showing the well-marked marginal flanges and the 
four anterior or pre-oral papillae. 
Fig. 3. The same, x 2 - 5. Ventral view. 
Fig. 4. The same, x 15. Ventral view of anterior end showing the hooks, the mouth and 
the two posterior or post-oral papillae. 
Fig. 5. A piece of the edge of the liver of Kachuga lineata, x 1, showing intense infection 
with Porocephalus kachugensis. 
Fig. 6. Porocephalus kachugensis, x 4. Three-quarter view showing the mouth, four 
double hooks, the two conspicuous papillae, the incomplete annulations and the median 
ventral groove. 
Fig. 7. P. kachugensis, x 4. Lateral view showing the hooks projecting unusually far, 
and the absence of annulation on the dorsal surface. 
Fig. 8. Hook of P. kachugensis, x 30, showing the shaft and double hook. 
Fig. 9. A portion of cuticle of P. kachugensis showing the arrangements of the sabre¬ 
shaped spicules between the annulations. 
Fig. 10. The same spicules more highly magnified. 
