loS STALK-EYED CRUSTACEA 



2. Parthenope. 



Parthenopc .... H. Milne Edwards, Fabricius, 



Latreille. 



Cancer Herbst. 



Main Latreille. 



The carapace, the eyes, the rostrum arc as in the 

 genus Lambnis. 



The basal joint of the external antennae is not 

 soldered to the neighbouring parts, but reaches almost 

 to the front ; the second joint is slightly shorter than 

 the first, and is lodged in the cavity at the orbital angle ; 

 this cavity connects the orbit with the antennulary fossa.'. 



The abdomen is composed of seven joints in both 

 sexes. 



Range. — Atlantic and Indian Oceans. 



I. Parthenope horrida, 



Paj-tliciiope horrida . . H. Milne Edwards, Leach, 



Fabricius, Latreille, Guerin. 

 Cancer spinosiis . . . Rumph. 

 Cancer horridus . . . Linne. 

 ]\Iaia horrida .... Bosc. 

 Lazy crab Griffith Hughes. 



Carapace pentagonal, much wider than long, hori- 

 zontal, strongly embossed, and tuberculate above ; the 

 antero-lateral border is very oblique, and armed with 

 spines. Orbits circular, with a fissure in their upper 

 edge. Rostrum short, triangular, and armed below with 

 a strong interantennulary tooth. The first pair of legs 

 is very large, of unequal size, and covered with large 

 spiniform tubercles ; the other legs, to the origin of the 



