FEOM THE INLAND SEA OF JAPAN. 391 



are unequal ; the upper border is also somewhat denticulate. The posterior margin of the 

 carpus, which is smooth above and below, is sharp ; it carries one tooth just beyond the 

 middle and one at the distal end. The anterior border of the upper surface is granulate. 

 The three sides of the trigonal palm are also smooth ; the anterior edge is crenulate, the 

 upper denticulate ; the teeth are small, little prominent, but one, just beyond the middle, 

 is somewhat larger than the rest. The sharp, cristiform, posterior margin carries four 

 triangular teeth, one at each extremity and two in the middle; teeth and margin are, 

 moreover, finely denticulate : that of the left cheliped carries six or seven teeth. The 

 sharply-pointed fingers are much turned inward, the dactylus being at a right angle with 

 the upper surface of the palm. The upper border of the dactylus is granulated, the first 

 granule or tubercle near the articulation is much larger than the following, which become 

 gradually smaller ; the cvitting-edge of the dactylus of the larger cheliped carries five 

 low, obtuse teeth, of which the fifth, near the tip, is a little larger than the preceding. 

 The immobile finger carries two much larger, obtuse teeth in the middle, the second of 

 which is larger than the pi-eceding one. The fingers of the left leg are less denticulate. 



The ambulatory legs are also of moderate length, those of the first pair extend with 

 only half their dactylopodite beyond the distal end of the arm of the chelipeds ; their 

 joints are laterally compressed. The upper margin of the merus is sharp, lamellar, and, 

 in the legs of the last pair, faintly deuticulate ; the lower edge of the outer surface 

 is, in the last pair of legs, beset with prominent, rather acute and unequal granules; on 

 the meri of the two preceding pairs they are smaller, and on the legs of the first pair it 

 is not the lower edge of the outer, but that of the inner surface which is granular. The 

 upper margin of the two following joints is also lamellar and sharp, and the lower margin 

 of thepropodites is finely granulated. The terminal joints, slightly longer than the propo- 

 dites, are tomentose, except at their tips. The coxae of the fifth pair carry two acute 

 teeth posteriorly, the outer larger than the inner. 



The upper surface of the carapace is cream-coloured, the sides of the median regions 

 are marked with wine-red spots ; the chelipeds are red, and the fingers dark brown ou 

 their distal h;ilf, the tips being paler. 



Lambrus {PtuHhenopoides) pteromerus, Ortm., from Japan, of which the type was 

 examined by me, is a quite dift'erent, much larger species. 



LUPA, Leach. 

 LuPA (Hellenus) hast.\toides (Fabr.), de Haan. 



Portunus [Amphitrite) linstatodes, de Ilaan, Fauna Japoa., Crust. 1835, p. 39, Taf. 1. fi^. 3. 

 Neptunus (^Amphitrite) hastatuides, de Man, iu Spen^el, Zool. Jalirb., Syst. viii. 189-1-95, p. 557. 

 Neptunus [Helttnus) hastatoides, Alcock, ia Journ. Asiat. Sioc. Bengal, vol. Ixviii. pt. ii. 1899, p. 38. 



One male from the Inland Sea of Japan, deep sea. 



The two median teeth of the front are distiticlhj less prominent than the others, just as 

 in de Haan's type specimen, mentioned by me {I. c.) ; in Indian specimens the two median 

 teeth are usually as prominent as or even more prominent than the others, as was stated 

 by me, and later also by Alcock, by whom a large number of individuals were examined. 



