74 Records of llie liuJian Miiseinn. [Voj:. XIV, 



side ; these anchor the larva to the tube. Near the anus two pairs of 

 blood-gills are also present {h.g., fiu. 1) ; from the base of each of the 

 upper pair of gills a stout seta is also seen to arise. 



Internal Anatomij. — No attempt is made to describe the internal 

 anatomy in detail, which would be impossible with the very limited 

 material available ; a few differences, from the form described in detail 

 by Miall and Hammond are, however, noted. 



The supra-oesophageal and the sub-oesophageal nerve ganglia lie in 

 the prothoracic segment and not in. the head, which as noted above is 

 very small. The rest of the nervous system is essentially the same. 



In the alimentary canal the cardiac portion of the stomach {ca. fig. 9) 

 and the dilated chamber at the beginning of the small intestine {ch.) are 

 poorly developed. The salivary glands {s. g.) also lie much more an- 

 teriorly, the ducts being relatively small. 



The tracheal system has two well developed longitudinal trachese one 

 on either side. 



In conclusion I have to express my sincere thanks to Dr. N. Annan- 

 dale for the material and kind help ungrudgingly given at all times. I 

 am also deeply indebted to Mr. T. Southwell, A.R.C.S., F.Z.S., Director 

 of Fisheries, Bengal, and Bihar and Orissa, for permission to undertake 

 and publish this work. 



LITERATURE. 



1. Annandale, N.— " Notes on the Fresh-water Fauna of India. 



No. IV. Hijdra orienialis and its bionomical relations 

 with other invertebrates."' Joiirn. As. Soc., Bengal 

 (new series), Vol. IT, 1906. 



2. Annandale, N. — " Fresh-water Sponges, Hydroids and Polyzoa." 



Fauna of British India, 1911. 



3. Gravely, F. H.— " Notes on the Habits of Indian Insects, Myriapods 



and Arachnids." Rec. Ind. Mus., Vol. XI ; 1915. 



4. KiEFFER, J. J. — " Description de nouveaux Chironomides de 



ITndian Museum de Calcutta." Rec. Ind. Mus., Vol. 

 VI, 1911. 



5. KiEFFER, J. J. — •" Nouvelle etude sur les Chironomides de llndian 



Museum de Calcutta." Rec. Ind. Mus., Vol. IX, 

 1913. 



6. MiALL, L. C. — " The natural Histon/ of Aquatic Insects.^' London, 



1895. 



7. MiALL, L. C. AND Hammond, A. R. — •" The structure and life-history 



of the Harlequin fly {Chirononius). Oxford, 1900. 



