108 



A CORNISH FAUNA. 



Gammartts locusta. — Linnmis, Fauna Suec, 2nd ed,, p. 497. — 

 Bate and Westwood, p. 378. 



This species appears to be pretty generally distributed all round 

 Europe, and may be found in pools near low water. It inhabits 

 the sea a little further from the shore than 67. marinus. The 

 parent in this species has been observed by Dr. Salter to watch 

 over and care for its newly hatched young. These swim round 

 and follow the parent, and when frightened will rush to her and 

 hide themselves in the incubating pouch, in which they nestled 

 until the danger was passed. 



Gammartts pulex — Linnceus, Syst. Nat., 1055. — Bate and West- 

 wood, p. 388. 



Common in all our ponds and fresh water rivers, but according 

 to our own experience less frequent and smaller than in other 

 parts of England. 



Genus, Megam^ra. — Spence Bate. 



Megam^ra semiserata. — Spence Bate. — Bate and Westwood, 

 p. 401. 



This species as yet has only been recorded from Plymouth 

 Sound. 



Megam^ra longimana. — (Long handed screw.) — Leach, MSS. — 

 Bate and Westwood, p. 403. 



This has been found in many places in Great Britain and Ire- 

 land, but does not appear to be common anywhere. In Cornwall 

 we only know it from Penzance, and there it was taken under St. 

 Michael's Mount. 



Megam^era othonis. — Milne Edwards, Ann. des Se. Nat., t. xx, p. 

 373, pi. x, fig. 11. — Bate and Westwood, p. 405. 



"We have dredged this species in Plymouth Sound, and Mr. 

 Loughrin has sent it to us from Polperro, but it has not been 

 taken any where else in the British Isles. 



Me gamier a brevicaudata. — Spence Bate, Gat. Ampli. B. 31. — 

 Bate and Westwood, p. 409. 



Dredged in Plymouth kSound. 



