384 . MB. CECIL WAKBURTON OX A [Apr. 3, 



scaly cuticle. It is also noteworthy that not even the winter-coat 

 of a horse in Scandinavia approaches in denseness that of the 

 supposed Onoltippl'Hum ; while there are other differences more 

 easily seen than described. 



Taking all circumstances into consideration, I think we must 

 return to the above suggested theory, that the specimen now under 

 discussion is a piece of skin of an Onohippidium. If that be 

 correct, it is of course very interesting to have a fragment of 

 the soft parts of a second animal, long ago extinct, from the 

 Cueva Eberhardt. 



The detailed statements of Erland Nordenskjold as to the 

 extreme dryness of those parts of the cave where these remains 

 were found, and the protecting layer of sulphate of magnesia, 

 give a plausible explanation of the organic substances (even flesh 

 on some bones) having been so excellently preserved for such a 

 considerable time. I may add that Professor Lagerheim has also 

 made attempts to find bacteria in the faecal material, but failed to 

 discover any l . «S 



3. On a remarkable Attid Spider from Borneo, Mantisutta 

 trucidans, n. g. et sp. By Cecil Warbukton, M.iC, 

 Christ's College, Cambridge. 



[Received March 31, 1900.] 



By the courtesy of Dr. Sharp I am able to describe a very 

 interesting new Spider found in a collection of insects, chiefly 

 Termites, made by Dr. Gr. D. Haviland in Sarawak, Borneo. The 

 Spider was overlooked ou first going over the collection, and un- 

 fortunately no note was made of the particular insects with which 

 it was associated, and nothing is certainly known with regard to 

 its habits. 



Fam. Attidje. 



Subfam. Ltssoman^e. 



Genus Mantisatta, n. gen. 



Body elongated and depressed. Eyes arranged as in Lyssomanes. 

 Spinnerets beneath the posterior end of the abdomen, which is 

 produced beyond them into a caudal process. Legs of the first 

 pair much the most strongly developed, with strong forwardly 

 directed spines under the tibia and baekwardly directed spines 



1 After the reading of this paper, Dr. W. G. Ridewood remarked that lie 

 had examined the microscopic structure of the hair of the two equine hoof's 

 found in association with Grypotherium by the L;t Plata Museum expedition. 

 He had observed iu the hairs attached to these hoofs the tapering of the hair 

 at ench end, the sialy cuticle, and the excentric position of the relatively large 

 medulla, which had been described as characterizing the hair of the pro- 

 blematical skin found by E. IVordeiiskjold. 



