514 THE AMERICAN NATURALIST. [Vor. XXXIV. 
THE SPECIES OF PARTHENOPID&.! 
Genus Lambrus Leach. 
Key to Species. 
A. Carapace subtriangular, with lateral angles. 
B. Protuberances of the carapace Ta subacute 
L. pourtalesii Stimpson, MS 
B'. Protuberances of the carapace ,tuberculiform, broadly rounded at 
n fraterculus Stimpson, M(CH)G 
1 + 
5 
Libinia ema 
FIG. 10. 
A’, Carapace posteriorly rounded, without lateral angles 
. agonus Stimpson, G 
Genus Platylambrus Stimpson . P. serratus (Milne-Edwards), M( CH YG 
Genus Solenolambrus Stimpson. 
Key to Species. 
A. Gastric and cardiac regions with angular ridges 
S. decemspinosus Rathbun, G 
A’, Gastric and cardiac regions without angular ridges 
S. tenellus Stimpson, G 
Genus Cryptopodia Milne-Edwards. 
1 California is given by Owen as the type locality of Lezolamórus punctatissimus 
As it has not since been recorded north of Lower California, which was known 
* California" in 1839, it is inferred that the species does not occur in the 
United States. 
