]\IisGeUanfious. 241 



resembled them, he proposed for Ihein a new genns, which he called 

 Titanosaurus. Two speciea were represented. After noticing the 

 principal characters of the Indian specimens, he showed that some 

 caudal vertebra? in the British Museum, collected by the late Mr. 

 Fox from the AVealden of Brook, in the Isle of Wight, agreed in 

 form with those found in India and were, in fact, intermediate in 

 some respects between the two Indian species. An inquiry into the 

 associated remains at Broolv indicated that the caudal vertebra) in 

 question probably belonged to Orniihopsis, and this probability was 

 supported by the structure of certain American fossil genera placed 

 by Marsh in the same suborder, Sauropoda, of the Dinosauria. In 

 &ny case there is great probability that at least one of the Indian 

 and the Isle of Wight vertebras should be referred to the same 

 genus. 



Some other instances of fossil vertebrates appearing in Indian 

 beds of a rather later geological age than in Europe were noticed. 



MISCELLANEOUS. 



On Lernasascus nematoxys, a hitherto unlcnowii Lerncean. 

 By Prof. C. Clatjs, 



Beneath the scales, esi)ecially of the pigmented side, of Soha 

 monochir there lives a vermiform parasite 8-10 millim. long, which, 

 when examined by the naked eye, resembles a small Nematode; it 

 glides to and fro by means of slight bendings of its body, after the 

 fashion of the mining caterpillars, in short, narrow, mucous canals. 

 Closer examination, however, shows that we have to do here with a 

 female Lennean, which has taken on a worm- like form in accord- 

 ance with its dwelling-place, and has acquired several exceedinglj- 

 remarkable adaptations. The anterior and posterior extremities of 

 the body taper off gradually, the former easily recognizable by the 

 insertion of the antennae, the latter by the two furcal processes. As 

 may be seen from the position of the two oviducal apertures, only 

 the extreme hinder end, scarcely 1 millim. long, represents the 

 abdomen ; the preceding division of the body, which is nearly ten 

 times as long, with the nervous centre, middle intestine, ovaries, 

 and cement-glands, represents the cephalothorax. On tlie cephalic 

 part of this the anterior, setigerous, tactile antennae are inserted ; 

 and ventrally the prehensile antennae, which terminate in strong 

 hooks. The tripartite entomostracal eye is perfectly retained. The 

 mouth-organs consist of a sucking-proboscis armed with two 

 reversed booklets, and of two powerful foot-jaws. The mandibles 

 are aborted, and the stylet-bristles placed outside of the proboscis 

 are to be regarded as maxillae. There are three pairs of limbs con- 

 sisting of minute rudimentary feet originating tar apart ; the first 

 two pairs are still recognizably biramose ; the feet of the last pair 



