On new Sciiirus, RliipiJomys, it c. from Venezuela. 33 



tlic species ; l)uf, as no attention has l)(»en paid to the soxu il 

 characteristics in the species hitlicrto d iscribod atid t'e.r 

 speci "M have liocn rfcognizfd, it may be more jjeneral tiia:i 

 appears. I have found it only in Chprtistiit Wnlkf.ri^ cor- 

 tiiitus, liiuljdiiKticen.sit. The importance of the tibial prolon- 

 j^ations is also at presetit uncertain. Liordaire's second 

 species, Kutomus maJai/ascaricmttn, is said to bear these on 

 the middle legs only, for which reason he rei^arded it as 

 forming a distinct section of his genus. This may necessitate 

 the furniatiun of a third gtiius if the feature is found to have 

 the importance attached to it by him. 



The description of the larva of Rhipidcmdrua fungicola by 

 Friedenrcich is interesting, in view of the extremely tlivergent 

 views which have been Indd as to the proper location of the 

 group. 1'he body is bent like that of most Lamellicornia, 

 but there are only nine abdominal segnu'nts, which are not 

 larger than the thoracic, aiul the terminal one ends in a pair 

 of pointed processes. There are five ocelli on eacli side of 

 the head, and the labial palpi are said to be three- jointed. 

 All tluse characteristics exclude the insect from the ranks of 

 the Lamellicorn Coleoptera and conclusively point to its 

 lelationsliip to the lignivorous Malacodermata. This addi- 

 tional lijilit is of value in settling the question as to the 

 true systematic position of an enigmatical type of insect 

 which has been referred to no less than four of the suborders 

 of Coleoptera. 



'i he " Heptaphyllini " being eliminated, it remains true 

 for the Lamellicornia that a primitive five-jointed tarsus is 

 the most invariable of their characteristics, probably the 

 only exception being a very few obviously degenerate forms 

 such as btenonltrnus and I'hijcocliuHy which are among the 

 most abnormal of all Coleoptera. 



\\. — Sew Sciurus, Rhipidomys, Sylvilagus, and Caluromys 

 from VenezutUi. By OldfieLD TuomaS. 



Sciurus.Jlammifer, sp. n. 



A very large 8i>ecies allied to *S^. iyniventris. B. lly white. 

 Tail ochraceous. General colour of body above of the same 

 speckled or grizzled yellowish as in »S'. tgniventris. Head 

 and ears rufous. Chin pale rut'ous. Rest of underside and 

 inner sides of linibs pure sharply defined white, edged on each 

 side with a narrow Inie of orange-rufous. Outer side of 

 limbs rich rufous, becoming orange-rufous on the digits. 



Ann. tt- May. S. Hist. Ser. 7. Vol. xiv. '6 



