24 Mr. E. J. Miers on new or little-known 



cated. The ambulatory legs are more robust. Length of 

 carapace to base of rostrum, and breadth, \ inch. 



Hab. Australia, between Percy Islands and the main, 

 lat. 21° 50' S., long. 150° 20' E. {H.M.S. 'Rattlesnake; J. 

 Macgillivray) . 



Two specimens, males, are in the collection, dredged in 

 17 fathoms, on a bottom of coarse sand and shells. 



Var. planifrons. (PI. V. fig. 7.) 



In this variety the carapace is covered with numerous, 

 small, rounded tubercles or granules, and with rather larger 

 rounded tubercles on the antero-lateral margins. The lateral 

 epibranchial spine (in an adult female) is rather short. The 

 eyes are short and thick. The orbital margins are distinctly 

 granulated ; the rostrum is triangular, rather prominent, flat, 

 smooth, and scarcely acute at its distal end. The upper 

 surface of arm, wrist, and hand are tuberculated. The spines 

 of the anterior and posterior margins of the hands are straight, 

 flattened, and rather broad and not granulated at base ; the 

 under surface of the anterior legs is nearly smooth. Length 

 of carapace to base of rostrum nearly % inch. 



Hab. Ceylon {E. W. H. Holdsworth, Esq.). 



The form of the rostrum, of the spines of the hand, the 

 granulations of the carapace, and the short lateral epibranchial 

 spine serve to distinguish this variety. 



There are some young individuals from the Gulf of Suez 

 {MacAndreiv) which differ from all the preceding forms in 

 the existence of a small blunt tooth on each side of the ros- 

 trum, which is sulcate above; but these I will not at present 

 designate by a distinct name. 



Lambrus curvispinus, sp. n. 



This is a species belonging to the same section of the genus 

 as L. hoplonotus, and closely allied to it. It has the granules 

 of the upper surface of the carapace small and subspiniform. 

 The rostrum is very small, acute, and granulous on its lateral 

 margins. The teeth of the antero-lateral margins are much 

 longer and become well-developed spines as they approach 

 the lateral epibranchial spine, which is extremely long. The 

 inner margin of the arms is minutely spinulose ; and the spines 

 of the anterior margin of the hands are long, acute, and 

 curved upward and forward at the tips. Length of carapace 

 to base of rostrum f inch. 



Hab. Java Sea (H.M.S. ' Ramarang'). 



