108 
A COETTI8H FAUNA. 
Gammaeus eoottsta. — Linnaus, Fauna 8uee., 2nd ed., p. 497. — 
Bate and Westwood, p. 378. 
TMs 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 Q. 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. 
Gammaeus pulex — Linnaeus, Syst. Nat., 1055 . — Bate and West- 
wood, p. 388. 
Common in aU our ponds and fresh water rivers, but according 
to our own experience less freq^uent and smaller than in other 
parts of England. 
Gesus, Megam^ea . — Spence Bate. 
Megam^eea sbmisebata. — Spence Bate. — Bate and Westwood, 
p. 401. 
This species as yet has only been recorded from Plymouth 
Sound. 
Megamasea noNGiMANA.— (Long handed screw.)— 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. 
MEGAMiEEA OTnoNis. — Milne Edivards, Ann. des Sc. Nat., t. xx, p- 
373, x,jig. 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. 
MegamajJea beevicatjdata . — Spence Bate, Cat. Ampli. B. M . — ' 
Bate and Westwood, p. 409. 
Dredged in Plymouth Sound. 
