72 DE. J. G. DE MAN ON THE PODOPHTHALMOUS 



Immediately beliind tlie external angles of the front, the 

 smooth upper orbital margin presents a small short oblique crest 

 and more outward two fissures ; the external angle of the median 

 lobe, situated between these two fissures, projects a little forward, 

 though not forming a tooth. The under margin of the very large 

 orbits also presents a fissure, and appears minutely denticulate 

 between the latter and the large rounded internal lobe, whicli 

 projects even more forward than the frontal teeth. 



Whilst the left antero-lateral margin of the carapace is pro- 

 vided with nine teeth, the right presents only four between 

 the external orbital angle and the terminal spine ; these teeth 

 evidently successively appear during the growth. The terminal 

 spines are comparatively nearly as long as in Kept, rugosus, 

 measuring about one third of the length of the cephalothorax ; 

 they are directed transversely outward and slightly forward, 

 whereas in N. rugosus their direction is backward. The lateral 

 angles of the posterior margin terminate each in a short acute 

 spinule, directed outward and upward. The subhepatic regions 

 of the carapace are a little hairy, and are fringed along the antero- 

 lateral margins with longer hairs. 



As regards the shape of the female abdomen, I refer to the 

 figure of Neptunus gladiator published by de Haan (Fauna 

 Japonica, pi. i. fig. 5), which wholly agrees witli that of this 

 species. 



The somewhat hairy anterior legs are comparatively as short 

 as in Nept. rugosus, and the arms extend but little beyond the 

 antero-lateral margins of the carapace, and do not reach to the 

 point of the great terminal spine. The anterior margin of the 

 arms bears three acute, somewhat curved spines, the median one 

 of which is found exactly on the middle of the margin ; the 

 proximal spine is seen immediately behind the median spine, but 

 thie distance of the distal spine from the latter is somewhat 

 greater. The posterior margin of the arms is provided with two 

 spines, a larger spine at the distal end and a somewhat shorter 

 one close behind it. The wrist is armed at its internal angle 

 with a large acute spine, and a smaller one is found on the middle 

 of its posterior margin. The hand is armed with two spines, one 

 on the outer margin of the upper surface, close to the articulation 

 with the wrist, the second a little beyond the middle of the in- 

 ternal margin. A small dentiform tubercle, moreover, is found 

 at the distal end of the outer margin, above the articulation of 



