THE FAUNA OF THE SALCOMBE ESTUAKY. 199 



at the north-east end of Salconibe Harbour. The species was entirely 

 absent from the banks near the mouth of the harbour. 



Branchiomma vesiculosum {Montagu) is another species which was 

 first described from specimens obtained in this estuary. It occurs at 

 a higher tidal level than Sahella pavonina and Myxicola infundihulum, 

 and is most abundant where the soil is composed largely of gravel. 

 It was never met with on clean sand or mud. It was most numerous on 

 the gravel at the Salstone and in the upper parts of Salcombe Harbour. 



Myxicola infundibulum {Rcnier) is also a very common species 

 in the estuary, and was well described by Montagu, who found it 

 on the Salstone. It is very frequent on all parts of the Salstone, 

 and in some places at the north-east end of Salcombe Harbour. It 

 occurred in extraordinary numbers near low-water mark, on the zostera 

 flat immediately to the south of Pilworthy Point. In the lower 

 parts of Salcombe Harbour it was met with only occasionally, and 

 must there be regarded as an immigrant from the upper parts of 

 the estuary. 



PoTAMOCEROS TRIQUETER (LinncBus). Common in dredge material 

 from Salcombe Harbour and the Kingsbridge estuary. 



Spirorbis borealis, Daudin. Common in dredge material from 

 Salcombe Harbour and the Kingsbridge estuary. 



CRUSTACEA.* 



DECAPODA. 



Stenorhynchus phalangium {Pennant). This species was present 

 in most hauls of the dredge taken between the Salstone and the mouth 

 of the harbour, excepting those taken in the " Bag." 



Stenorhynchus tenuirostris {Leach). A few were dredged between 

 Snape's Point and the mouth of the harbour. 



Inachus dorsettensis (Fenn.). Taken in all hauls of the dredge, 

 excepting those in the "Bag." 



Inachus uorynchus, Leach. Was only found on the west and 

 south-east shores of the Salstone, between tidemarks. 



Maia squinado {Rerbst). One only was taken in the dredge between 

 Snape's Point and the mouth of the harbour. It is, however, very 

 commonly taken when working the tuck-net on the zostera banks and 

 mud-fiats. 



EuRYNOME ASPERA, Lccich. This crab was common in dredgings 

 taken between Snape's Point and the Salstone. 



PiLUMNUS hirtellus {Linn.). One only was taken in dredging from 

 between Snape's Point and the Salstone. 



* By R. A. Todd. 



NEW SERIES. — VOL. VI. NO, 2. P 



