494 Mr. G. E. Dobson on new Species o/Croculura. 



Tliis second new species of Mesolepis 13 at once distln- 

 guisliable from M. taherculatas by tlie scale-ornament, and 

 from the Coal-measure species M. Wardi, Young, by the 

 p;reater proportional size of the head and the peculiar small- 

 ness and narrowness of the scales. 



Locality. Glencartholm, Eskdale. Type in Edinburgh 

 ]\luseum. 



Cheirodopsis Geikiei, Traq. 



More perfect examples of this interestinf^ Platysomid show 

 that not only were the dorsal and ventral peaks of Chei- 

 rodus wanting, but that it possessed well developed ventral 

 tins which are absent in the allied genus. 



Tarrasius prohlematicuSy Traq. 



Prof. Zittel, in the ichthyological part of his * Handbuch 

 der Palffiontologie,' has provisionally placed this extraordinary 

 fossil fish in the Dipnoi *. More recent acquisitions show that 

 such a view of its position is quite untenable, the pectoral 

 fin, unknown previously, being rounded and with only a very 

 small basal lobe. 



We now know the form of the entire fish, and, though the 

 osteology of the head is not sufiiciently clearly exhibited to 

 decide its systematic position with absolute certainty, the 

 obtusely lobate character of the pectoral fin seems to point 

 towards the Crossopterygii. The teeth are small and obtuse. 

 The anterior part of the body is naked, the small Acan- 

 thodian-like scales only commencing behind the abdominal 

 region. 'I'here is no trace of ventral fins. 



The locality of the original specimen was in the " Report " 

 erroneously stated to be Tarras Foot. All the examples as 

 yet known were found at Glencartholm ; nevertheless the 

 name of the genus must stand. 



LXII. — Descriptions of new Species o/'Crocidura. 

 By G. E. DOBSON, M.A., F.R.S. 



Crocidura Grayi. 



Like C. Ilorsfieldii f, but considerably larger, although the 

 tail is not longer than in that species and is similarly nearly 

 naked ; the fur (so far as can be ascertained from an inspec- 



• I. Abtheiliinir, ■'! r>aii.l. ji. ll'lt. 



t Cfoi'idura Horsjiddii, 'lom^^,= C. retu^a, IVtors. 



