122 
A CORNISH FAHNA. 
Mr. W. P, Cocks took some specimens in the trawl refuse, at 
Gyllyngvase, Palmouth, and some specimens are in the Hoj)eian 
Collection at Oxford, and labelled “South-west Coast of England.” 
It has also been taken in Scotland. 
InoTEA APPENDicuLATA. — Risso, Hist. Nat. de VEnt. Nereid, vol. v, 
p. 107, 14,/. 29. 
Not very common, it has been taken at Polperro. 
SPHNdROMlDNd. 
Genus, Sph^boma. — Latrielle. 
Animal capable of rolling itself into a ball. Head small- 
Eyes dorsally placed at the posterior angles. Antennae short. 
Body wider than head. Posterior portion of the body (pleon) 
united into one segment. 
SpHiEROMA SEEEATUM. — Fabricius, Mant. Inst., \,p. 242 . — Bate ani 
Westwood, p. 405. 
This species is common under stones and among pebbles o» 
all our coasts, from Kent to Cornwall, and in the Mediterranean- 
We have also dredged fine sj>ecimens in Plymouth Sound, and 
observed quantities in brackish streams in South Wales. 
Spii^ROMA eugicandata. — Leach, Edin. Encij., vii, pp. 405-433.^ 
Bate and Westwood, p. 408. 
Erom the Hebrides to the coast of France has this animal been 
obtained. In Cornwall we have found it at the mouth of the 
river Tamar. 
This is a very active species, swimming, as all of the genus do, 
with its back downwards. 
Spuaseoma peideauxianam. — Leach, Diet. Sci. Nat., xii, p. 34d- 
— Bate and Westwood, p. 455. 
“Dr. Leach obtained this unique specimen from Mr. 
Prideaux, who took it on the west coast of Devonshire” 
ably ITymouth Sound). 
Genus, Dynamene. — Leach. 
Eesembles a male Sphieroma, but is distinguished from it 
a notch in the tail, 
