34 CARDISOMA IIIRTIPES. 



18. Cardisoma liirtipes , Dana. 



Milne Edwards, 1. c. pag. 205. 



The Museum contains many beautiful specimens from 

 the islands of Amboina, Ternate and Morotai. 



This species differs in many regards from Cardisoma 

 carnifex Herbst and the allied forms {Cardis. urvillei M. 

 Edw. and Cardis. armatum Herklots) and may be charac- 

 terised in this manner — 



Carapace but little more broad than long , convex longitu- 

 dinally; with rather little tumid branchial regions; lateral 

 margins defined by a very distinct and arched raised line, 

 which is continued but at a short distance beyond the 

 middle of the lateral margins. Lateral surfaces of the ca- 

 rapace provided posteriorly with numerous oblique lines. 

 Postfrontal lobes more prominent than those of Cardis. 

 carnifex. Anterior part of the carapace behind the orbits 

 near the raised lateral lines a little granulated. Epihran- 

 chial tooth vei^ij small ^ situated at a relatively greater dis- 

 tance behind the external orbital angle than in the former 

 species. Orbits rather little prolongated transversely , less 

 broad than the front and comparatively higher than those of 

 Cardis. carnifex Herbst, Inferior external orbital angle 

 acute ^ directed backward. First joint of the external an- 

 tennae about as broad as high loith a truncated summit'^ 

 internal suborbital lobe that separates it from the front, 

 triangular, acuminate. Pterygostomian regions more ex- 

 tensively covered with hairs than tliose of C. carnifex 

 Herbst. Anterior legs almost equal, very short; external 

 maro"in of the arm granulated, sometimes also the lower 

 margin ; upper margin obliquely Avrinkled. Upper surface of 

 the wrist a little granulated , and likewise the upper margin 

 of the hands. 



The hand of the larger leg scarcely as long as the 

 breadth of the carapace. Ambulatory legs as in Card, 

 carnifex Herbst. 



Breadth of carapace (cf ) (between the raised lateral lines) 



Notes Irom the Leyden Museum, "Vol. II. 



