296 PROCEEDINGS OF THE NATIONAL MUSEUM. vouxxu. 



less prominently granulated, with the interspaces and the sides 

 toward the lateral margins also more or less granulated; arm gen- 

 erally shorter (Miers). 



West African localities. — St. Vincent, Oape Verde Islands (Miers); 

 Goree Island, Senegambia (Miers). 



LAMBRUS BICARINATUS Miers. 



Lamirus (Parthenopoides) bicarinatus Miers, Ann. Mag. Nat. Hist. (5), VIII, 1881, 



p. 208. 

 Lambrus {Parthenolamhrus) bicarinatus Miers, Challenger Kept., ZooL, XVII, 



1886, p. 99. 



West African localities. — Canary Islands (Miers) ; Goree Island, Sene- 

 gambia, 9 to 15 fathoms (Miers). 



Genus HETEROCRYPTA Stimpson. 

 HETEROCRYPTA MALTZANI Miers. 



Heterocrypta maltzami Miers, Ann, Mag. Nat. Hist. (5), VIII, 1881, p. 209, pi. xi.ii, 

 fig. 1. 



Heterocr])pta maltzani Miers, Ann. Mag. Nat. Hist. (5), VIII, 1881, p. 374; Chal- 

 lenger Kept., Zool., XVII, 1886, p. 103. 



Range. — Bay of Toulon, 455 meters (A. Milne-Edwards); Fayal, 

 Azores, 50 to 90 fathoms; Azores, 450 fathoms; West Africa. 



West African locality. — Goree Bay, Senegambia, 9 to 15 fathoms 

 (Miers). 



Tribe OXYSTOMATA. 

 Family OALAPPID^. 



Genus CALAPPA Fabricius. 



KEY TO THE WEST AFRICAN SPECIES OF THE GENUS CALAPPA. 



A. Carapace with a deep hollow on either side of the gastric region. Posterior 



teeth of clypeiform expansion broad and shallow gallus. 



A'. Carapace without a deep hollow on either side of the gastric region. Posterior 

 teeth of clypeiform expansion elongate, spiniform. 

 B. Lateral teeth of clypeiform expansion three. Carapace marked with patches 

 of blood red. 

 C. Lateral and postero-lateral teeth of clypeiform expansion longer than broad. 



rubvoguttata. 

 C. Lateral and postero-lateral teeth of clypeiform expansion broader than long. 



granulata. 

 B'. Lateral teeth of clypeiform expansion four. Carapace narrower than the pre- 

 ceding pelii. 



