234 



3IPw A. S. KEXNAPvD AND ME. B. B. WOODWAED [Juiie I9T2, 



Appendix III. — The Molltjsca. By Alfeed Santee Kennard, 



P.G.S., and Berxaed Baeha^i Woodwaed, P.L.S., F.G.S. 



[Plate XYII.] 



The material on Tvhich the following notes are based was derived 

 from two sources — (1) a large series sent by Mr. S. Hazzledine 

 Warren, and (2) a number of examples collected by Messrs. A. S. 

 Kennard & P. ^N". Haward, the result of washing several hundred- 

 weight of the clay, the water in the pit being very convenient 

 for that operation. Mr. Warren's collection consisted of four series 

 marked ' Upper Bed,' ' Middle Bed,' ' Lower Bed,' and ' General.' 

 We have considered it advisable to enumerate these separately, 

 but we have incorporated our own series with the last. 



List of Mollusca from the Arctic Bed. 



Pender's End. 



Genera and Species. 



= scarce ; ** = abundant ; 

 ■jf-x-x-=TerT abundant.^ 



^ o 

 O 



Special Site, 



Angel 

 Road. 



Upper 

 Bed. 



Arioii sp ! ■» 



Limax arhorum Bouch.-Obant 



Agriolimax Icevis (^liill.) 



Sphy radium columella (Gr. v. Mts.).. 

 Vertigo 'parcedentata (A. Brauu) .. 



Jarninia muscorum (Linn.) 



Limncea pereger (Miill.) 



Limncea pahistris (Miill.) 



Limncea truncatula (Miill.) 



LimncBa stagnalis Linn 



Lvinncea sp 



Planoi-bis crista (Linn.) 



Planorhis arcticus Beck 



Flanoi'his spirorbis (Linn.) 



Planorbis leucostoma Millet 



ISuccinea ohlonga Drap ■»■** 



Succinea schumacheri And I * 



Succinea cf. groinlandica Beck j * 



Succinea elegans Risso , 



Valvata piscinalis (IMiill.) * 



Sphcerium comeura (Linn.) * 



Pisidium supinwm A. Scbm I . . 





Pisidium obtusale Pfr 



Pisidiuvi n itidum Jenyus 



Pisidium pusillum (Gmel.) enyns 

 Pisiditira hensloioamim (Shepp.)... 

 Pisidium siibtruncatum Malm 

 Pisidium casertanum (Poli) 



Middle 

 Bed. 



Lowest' 

 Bed. i 



* 



* 



* 



■5C- 





*** 



... 



* 





* 





* 



... 



!«• 





* 



*** 



**.- 





* 





«• 





* 





* 





* 



... 



* 



* 



* 

 * 



It will be noted that the general list contains all the species 

 from the three beds, with the exception of Limncea stagnalis. 



1 These details are of most Talue in the ' general collection ' enumerated in 

 tbe first column, as tbey are tbere based on more extensive material than in 

 tbe case of some of tbe otber beds. 



