352 ME. J. R. HENDEUSON— A C0:\TE1BUT10N 



Genus Parattmoltis, Miers. 



36. Pakatymolus sexspinosus, Miers. 



P. sexspinosus^ Miers, ' Alert' Crust, p. 261, \A. xxvii. fig. B (1884). 



Tuticorin, a male specimen ( Thurston). 



Three spines are present on eacli antero-lateral margin of the carapace, the first 

 (preocular) ami second obtuse, the third at the antero-lateral angle subacute and directed 

 forwards. The terminal joint of the antennal peduncle is greatly flattened and its margin 

 ciliated. The carapace is finely pubescent. Length of carapace 8 mm., breadth 7 mm. 



Dhtrlhution . Torres Strait (ii^'ers). 



Group Cyclombtopa. 

 Genus Atergatis, De Haan. 



37. Atergatis integerrimus (Lamarck). 



A. inteyerrinivs (Lam.), A. Milue-Edwaids, Nouv. Areli. Mus. Hist. Nat. t. i. p. .^35 (1865). 



(= A. subdivisus, Adams & White). 



Tuticorin, a series {Thurston) ; Ceylon {Hahj, NevlU) ; Rameswaram, not uncommon 

 at low water under blocks of dead coral {J. H. M.). 



The carapace of a Tuticorin specimen measures 68 mm. in length and 104 mm. in 

 breadth. 



BistrihutioH. Prom E. Africa to China and Japan. 



38. Atergatis floribus (Rumph.). 



A.jlorklus (Ruraph.), A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. i. p. 243 (1865). 



Rameswaram and Tuticorin {Thurston); Ceylon {Mali/, Nevill); llameswaram, 

 common on the reef and at low water {J. R. H.). 



The carapace of a specimen from Rameswaram measures 41 mm. in length and 58 mm. 

 in breadth. 



Bistributioii. From the Red Sea and E. Africa to Japan, N. Australia, New Caledonia, 

 and Tahiti. 



39. Atergatis l^vigatus, A. MUne-Edw. 



A. Icsvigatus, A. Milne-Edwards, Nouv. Arch. Mus. Hist. Nat. t. i. p. .".M, pi. xv. fig. 4 (1865). 



Tuticorin, an adult female {Thurston). 



In this sjjccics the carapace is very convex both from side to side and from before 

 backwards. The Jintero-lateral mai-gin terminates simply at its posterior end and is not 

 continued into a transverse ridge ; four closed and indistinct marginal fissures can be 

 made out, three of them situated rather close together on the posterior half of the margin. 

 The band is not carinated superiorly and the finger-tips are excavated ; the ambulatory 

 legs are strongly carinated. It is regarded by Kossmann as a variety of A. roseus 

 V P\.up))cll), but in the latter species, as described by A. Milne-Edwards, and in specimens 



