JAPANESE HERMIT-CRABS. 



363 



Diogens nitiäimanus, n. sp. 

 (Textfig. i). 



Carapace depressed, broadened posteriorly, well-calcified in front 

 of cervical groove, with several transversely or obliquely directed, 



close series of setose granules 

 in antero-lateral regions ; on 

 each side a longitudinal row 

 of teeth, running for nearly 

 two- thirds the length of cara- 

 pace in front of cervical 

 groove. A short way pos- 

 teriorly from the hind end of 

 the teeth row, there is a small 

 well-calcified areolet which is 

 anteriorly spinulose. Rostrum 

 broad, almost rounded off 

 and indistinct, less prominent 

 than antero-lateral teeth of 

 the anterior border of cara- 

 pace. 



Eyestalks very stout, 

 Diogenes nitidimanus, n. sp. A, anterior half of . 

 carapace, xS; B, left chelipetl. x6; C. 3rd left leg, shghtly narrowed in the 



x7 middle, shorter than the an- 



terior border of carapace, reaching to middle of the last joint of both 

 antennular and antennal penduncles. Eyes occupy about the third 

 distal part of the terminal joint of eyestalks. Ophthalmic scales 

 juxtaposed, large and broad, tipped with one or two spinules. The 

 spine on ophthalmic somite acute, entire, short. 



Antennal peduncles slightly setose, longer than antennular pedun- 

 cle ; antennal J acicles spinulose and slighty setose, shorter than the 

 penultimate joint of antennal peduncle ; antennal flagella about as 



Textfig. 1. 



