14 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 



7. PARAMITHRAX, Edwards. 



1. PARAMITHRAX EDWARDSII, Be Haan. 



Canthis iufra emarginatis ; oculis usque ad angulos cantliorum extemos productis ; thorace lateribus 

 5-spinosis ; manibus laevissimis utrinque convexis margine superiore et interiore obtusis. 



Hab. Japoniam. 



Carapace granulose, and without spines on the upper surface ; horns of the rostrum 

 very diverging, not much longer than wide, and terminated by two teeth, which are nearly 

 equal. 



Hab. Philippine Islands ; Cuming. 



Mithrax dichotomies, Latr. Desm. Cons. 150; Edw. in Guer. Mag. de Zool. 1S32. t. 1. Crust. 1. 319. 

 t. 15. f. 1-4. Maja dichotoma, De Haan, Faun. Japon. t. 22. f. 4. 



Orbits emarginate below, eyes prolonged as far as the external angles of the orbits, 

 thorax with five spines on the sides ; hands very smooth, convex on both sides, obtuse on the 

 upper and lower edges. 



Hab. Japan. 



Maja (Paramithrax) Edwardsii, De Haan, P. J. p. 92. Tab. 21. fig. 2. {Peronii. Edw.) 



8. TELMESSUS, White. 



Thorace depresso, pentagonali, latero-anterioribus lateribus reliquis longioribus ; latero-posterioribus 

 lateribus duobus dentibus in medio; latero-anterioribus lateribus duobus latis dentatis dentibus inter 

 exteriorem cantliorum angulum et magnam, latarn dentatam divisionem, cujus finis unum ex eminentibus 

 angidis thoracis efficit. Rostrum latissimum, ex tribus latis dentibus consistens, quorum lateralis in- 

 teriorem cantliorum angulum efficit. 



Pedes longissimi, compressi. 



Carapace depressed, somewhat pentagonal, the latero-posterior sides being the longest, 

 the latero-posterior sides have two teeth in the middle ; the latero-anterior sides have two 

 broad, dentatcd teeth, between the external angle of the orbit and the strongly developed, 

 wide, dentated division, the end of which forms one of the prominent angles of the carapace ; 

 the beak is very wide, and is formed of three broad teeth, the lateral forming the internal 

 angle of the orbit. 



Legs very long, compressed. 



This genus, described in the Proceedings of the Entomological Society, was, by mistake, 

 referred to as coming near Plagusia. It, however, enters into the family Maidia ; near it 

 and probably placed in the same genus is the Cancer cheirogonus, described and figured by 

 Dr. Tilesius, in the Meraoires de l'Academie Imperiale des Sciences de St. Petersbourg 

 (tome V. 1812. p. 347. Tab. VII. f. 1.), which species he tells us is taken abundantly in 

 Kamschatka, at Arvatchsa, in a bay which derives its name from the abundance of the Crabs : 

 the sailors of the Niva eagerly sought after the species, finding it to be very delicious as food. 



1. TELMESSUS SERRATUS, White. Tab. III. 



Superficie obsita parvis verrucis nonnunquam seriatim dispositis, setis e fronte extantibus. 



