REPORT ON THE CRUSTACEA MAORCRA. 



77 



Panulirus, Gray. 



This name was given by Dr. Gray to that division of the genus which Professor Milne- 

 Edwards designated " Langoustes longicornes." It consists of those species in which 

 there is no central rostriform tooth, which have the ophthalmic somite exposed and 



FIG. 5. — Dorsal view of Panvlirus. 



Fig. 6. — Lateral view of Panulirus. 



membranous, the first antennal somite produced considerably in advance of the frontal 

 margin, which is generally armed with strong teeth in the adult (as shown in the 

 accompanying woodcuts), and in which the terminal filaments of the first pair of antennae 

 are long and slender. This genus may conveniently be divided into : — 



Those species that have no transverse groove on the pleon — 



Panulirus fascmtusi Fabr. 

 ,, ornatus, Bosc. 



,, sulcatus, Lam. 



Those that have a transverse groove on the pleon — 



Panulirus guttatus, Latr. 



japoyxicus, De Haan. 

 spinosus, M. -Edwards. 

 america nus, M. -Edwards. 

 interruptus, Randal. 

 argus, Lat. 

 ehrenbergii, Heller. 

 penicillatus, Olivier. 

 dasypus, Lat. 

 burgeri, De Haan. 



Geographical Distribution. — There are a large number of species in this genus, but 

 they are mostly confined to the Indian and Pacific Oceans, ranging from the Mauritius, 



