38 CARCINOLOGFCAL STUDIES. 



Gelasimus signatus inhabits the eastern coasts of Australia, 

 Gelas. hellator Kingsley is certainly the same species, 

 though Kingsley describes only one row of granules on the 

 inner surface of the palm. -But I do not know whether Gelas. 

 hellator Ad. & White is also identical with this species or not. 



16. Gelasimus signatus Hess, var.: 

 angusti frons de Man. 



f PI. 4, fig. lie). 



The Leyden Museum contains twenty six specimens (twenty 

 males and six females) of a Gelasimus , which I consider 

 to form a distinct variety of Gelas. signatus Hess. They 

 were collected on the seashore of Batavia, and only one 

 female is provided with eggs. These specimens , which are 

 of a somewhat smaller size than the two typical 

 individuals from the eastern coast of Australia , which I 

 have described above , indeed exactly agree in all their 

 characters with these Australian types , with exception 

 of the front. This latter is namely a little narrower in 

 proportion to the distance between the external orbital 

 angles and the frontal furrow is longer, reaches 

 beyond the middle of the front and appears 

 also much narrower with only little divergent 

 lateral margins. I must, however, observe that in 

 some specimens these characters are more distinctly pro- 

 nounced than in others. The accessory row of granules on 

 the lower walls of the orbits is distinctly present in all 

 these individuals , both in the males and in the females. 



In the fifteen male specimens, which are provided with 

 their larger chelipede, eleven have it on the left and only 

 four on the right side of the cephalothorax. This chelipede 

 agrees perfectly with the Australian types, presenting as 

 distinctly the characteristic triangular lobe or tooth beyond 

 the middle of the lower finger , and the dactylus presenting 

 quite the same granules. In one specimen the fingers are 

 a little narrower and more slender than usual , and appear 

 Notes from the Leyden IVIuseum, Vol. XIII. 



