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SPATANGUS. 
Ecuinus, Linn., Gmel., Penn, &c. 
Spatancus, Lamarck. 
CHARACTER GENERICUS. 
Corpus crustaceum, irregulare, ovale aut cordiforme; spinis 
minutis instructum ; ports per paria digestis, ambulacras 
quatuor basi imperfectas efformantibus. 
Os inferum, inter medium et latus. 
Anus \ateralis. 
SPATANGUS. 
GENERIC CHARACTER. 
Body crustaceous, irregular, oval or heart-shaped ; covered 
with minute spines ; with pores arranged in pairs, form- 
ing four ambulacra with imperfect bases. 
Mouth placed beneath, between the centre and the side. 
Anus lateral. 
We possess two indigenous species of this genus, which 
are figured by Pennant. 
