322 THE FAUNA OF THE EXE ESTUARY. 



where the soil was fine sand, e.g. BuUhill liank (sta. 9), Cocklesancl 

 (sta. 13), and between Cockwood and Salthouse (sta. 10). It was not 

 seen on the Polesands. This distribution is interesting when compared 

 with the distribution at Salcombe, where the species occurred in great 

 quantity on the fine clean sands near the mouth of the harbour. 



As already pointed out under Arenicola marina, the latter species was 

 very abundant on the fine clean sand banks where Lanice was not 

 plentiful, whilst as the ground became coarser Lanice became abundant 

 and Arenicola scarcer. 



Sabellaria alveolata, Linn. This worm was very common at 

 Orcombe Eocks at the mouth of the estuary, forming the usual 

 reef-like masses. 



Melinna adriatica, von Marcnzellcr. One or two specimens only 

 were found at each of the following localities : the Gravel between 

 Powderham and Starcross (sta. 4), between Starcross and Cockwood 

 (sta. 8), and on the sand west of the mouth of the Salthouse 

 Lake (sta. 10). 



The scarcity of this species in the estuary is noteworthy, as in the 

 upper parts of the Salcombe estuary it occurred in enormous profusion 

 in the mud-flats, especially in the very fine and soft mud. On the 

 mud-flat at Greenlands, the highest part of the Exe estuary examined, 

 and where the mud was in places very soft, not a single specimen 

 was taken. 



PoMATOCEROS TRIQUETER {Linn). Found only at Orcombe Eocks, 

 at the mouth of the estuary. 



CRUSTACEA.* 



UECAPODA. 

 [Nomenclature: Bell, Stalk-eyed Crustacea.'] 



Stenorhynchus PHALANGiUiM (Pennant). Three from BuUhill Deep 

 Pit, one between Cocklesand and BuUhill Bank (sta. 13), one from 

 Mere Bay (sta. 15), and four outside Polesands, all with mosquito net 

 trawl. 



Cancer pagurus, Linncetis. Small ones not uncommon among 

 Orcombe Rocks ; one small one dredged on the sponge ground off 

 the Clock Tower (sta. 14b), and a few small ones in the dock, 



Carcinus M/KNAS {Pennant). Taken in almost every haul with the 

 mosquito net trawl. Collected on Polesands and on most of the 

 grounds above the Warren and in the dock. 



PoRTUMNUS VARIEGATUS, Leach. About half a dozen were found on 

 the smooth sand on the west side of Polesands, buried an inch or two 



* By K. A. Toujj. 



