350 MR. J. E. HENDERSON — A CONTRIBUTION 



27. Lambkus contearius (Herbst). 



L. conirarii/s (Herbst), Milne-Edwards, Hist. Nat. Crust, t. i. p. 354 (1834) ; Miers, ' Challeuger ' 



Brachyura, p. 94 (188G). 



(= L. spinimanus, Desmarest). 



Tuticorin, an adult male (Thurston). 



The carapace of this specimen is 38 mm. long, 3G mm. broad, and the chelipedes 

 93 mm. long. 



Distrihution. Mauritius, Malay Archipelago. 



28. Lambhus afpinis, A. Milne-Edw. 



L. affinia, A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. viii. p. 261, pi. xiv. fig. 4 (1872). 



Tuticorin {Thurston); Rameswaram {J. B. S.) ; Gulf of Martaban (Oates); Ceylon 

 {.NeviU). 



The chelipedes are stouter and proportionately shorter in the female than in the male, 

 and in the latter the ambulatory legs are also more slender. The carapace of a male is 

 18 mm. long and 18-5 mm. broad. It is a common and widely-distributed species, and, 

 as suggested by Miers, may perhaps prove identical with the longer known L. pelagicus, 

 Eiippell. 



Dlstrihition. Zanzibar, Seychelles, Singapore, Cochin China, Philippines, N. Australia, 

 New Caledonia. 



29. Lambkus longispintjs, Miers. 



L. loiKjispinus, Miers, Ann. Mag. Nat. Hist. ser. 5, vol. iv. p. 18 (1879). 



{= L. sphnfer, Haswell). 



Tuticorin, an adult male ( Thurston). 



This species may be recognized by the median row of large spines on its carapace, and 

 by the presence of large rounded granulated tubercles on the under surface of the cheli- 

 pedes. The ambulatory legs are strongly compressed. 



Distribution. Shanghai, Malay Archipelago, N. and N.E. Australia. 



30. Lambrtjs Holdswokthi, Miers. 



L. Holdsworthi, Miers, Ann. Mag. Nat. Hist. ser. 5, vol. iv. p. 19, pi. v. fig. 3 (1879). 



Tuticorin, a male [Thurston). 



The specimens described by Miers were all females. The male has more slender 

 chelipedes and the inequalities of the carapace are more marked ; there is also a row of 

 minute tubercles passing forwards on each side from the gastric spine towards the orbital 

 margin, Avhich is not represented in Miers's figure. The carapace is 13 mm. long and 

 145 mm. broad, the chelipedes 36 mm. long. 



Distrihution. Ceylon {Miers). 



31. Lambkus sculptus, A. Milne-Edw. 



L. {Aiclacolambrus) sculptus, A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. viii. p. 258, pi. xiv. 

 tig. 3 (1872). 



Gulf of Martaban, four specimens {Oates). 



