290 



THE ZOOLOGIST. 



In Falmouth Bay it is evidently very rare, only one solitary 

 example having been found at the mouth of the Helford River. 

 On the north coast it has been taken in 10 fathoms at Zennor ; 

 from low-water to 14 fathoms in St. Ives Bay (Vallentin) ; at 

 low spring-tide, Constantine Bay and Tintagel. At Scilly a 

 single specimen has been taken in 3 fathoms in Pentle Bay. 

 Females have been taken in berry in March and in June. The 

 Cleanser Crab, P. depurator (L.), is generally distributed, and in 

 places abundant, along the south coast from shallow water 

 down to 40 fathoms. Young specimens are occasionally taken 

 in rock-pools. At Scilly it is plentiful in 40 fathoms south-east 

 of St. Mary's, and is often common in trawl-refuse from outside 

 the Bishop, and from about 45 miles west of the Longships, but 

 is rare in the enclosed waters. On the north coast it is fairly 

 common in 23 fathoms on shell-sand ten miles N.N.W. of Point 

 Navax, and in 16 fathoms north-west of Chapel Porth. It is at 

 times abundant in trawl-refuse at Padstow, and occurs there 

 both within the harbour and outside. Females have been found 

 in berry from February to October, but most commonly in early 

 summer. The "Wrinkled Swimming Crab, P. corrngatus (Pen- 

 nant), occurs frequently in the waters of Plymouth Sound, but 

 is apparently scarce all along the south coast and at Scilly. It 

 has been taken at Polperro (Laughlin, teste Norman), in Meva- 

 gissey Bay, at the mouth of the Helford River, and twice in 

 trawl-refuse at Scilly. It has not been observed on the north 

 coast at all. P. arcuatus, Leach, is common locally on sandy 

 bottom in 4 to 10 fathoms, and occasionally in deep water, from 

 Plymouth Sound to Falmouth Bay and harbour. In June, 1902, 

 fifty-two were taken at a single cast of the dredge in 40 fathoms 

 south of the Dodman, and it is occasionally well represented in 

 trawl-refuse at Porthleven and at Mevagissey. About Scilly it 

 is common in the shallow channels and enclosed waters, and 

 has once occurred in trawl-refuse there. On the north coast it 

 has been taken outside Pendeen Lighthouse, at Mawgan Porth, 

 and in trawl-refuse at Padstow. Females in berry occur plenti- 

 fully on the south coast and at Scilly in April and May. 



A tiny Chilian Crab, Pilumnoides perlatus (Poeppig), was 

 obtained in quantity by Vallentin on the sides of the guano- 

 barque ' Rushin ' from Lobos, off the coast of Patagonia, aban- 



