I 20 



i . Helice leacki Hess. 



1865. Helice leachii Hess. Arch. Naturgesch., Jahrg. 31, r., p. 153. 



1873. Helice pilitnana A. Milne-Edwards. Nouv. Arch. Mus. Paris, t. 9, p. 313, pi. 18, f. 1. 



1882. Helice leacki Haswell. Cat. Austral. Crust., p. 107. 



1887. Helice leachi de Man. Zool. Jahrb., Syst, Bd 2, p. 702. 



■ leachi Ortmann. Denkschr. med.-naturw. Gesellscli. Jena, Bd 8, p. 57. 

 1907. Helice leachii Rathbun. Mem. Mus. comp. Zool. Harvard Coll., v. 35, n' J 2, p. 36. 



Stat. 33. Bay of Pidjot, Lombok. 1 tf juv., in river. 

 Stat. 200. Bay of Bara, north coast of Buru. 1 rf juv. 



De Man 7 , who examined the type specimen of Hess, proclaimed the identity of H. leachi 

 and H. pilimana. The tuft of hairs in the gap of the fingers renders this species very con- 

 spicuous, and also the hirsute anterior part of the sternum. On the arm of the cheliped there 

 is (in the c? at least) a musical crest, situated quite near the distal fourth part of the inner 

 (anterior) margin, as has been observed by de Man. Corresponding to the presence of this 

 crest, the infra-orbital ridoe is transformed into an irreeular series of tubercles: besrinningf from 

 the epistome there is firstly a series of small tubercles, gradually increasing in size laterally ; 

 beneath the outer orbital angle a much larger, elongate tubercle is placed, that laterally is 

 strongly declivous, and is immediately foliowed by a shomewhat smaller tubercle, the sides of 

 which are strongly and regularly sloping; flnally there is a third tubercle, smaller than the 

 preceding and placed vertically beneath the anterior incision of the carapace. 



This species has been first recorded from Australia (Sydney) and aftervvards from New 

 Caledonia, the Carolines and Japan-, the finds of the "Siboga" now prove, that H. leachi is 

 also an inhabitant of the Moluccas and Lombok. Already Ortmann collected the species at 

 Dar-es-Salaam. 



Dimensions in mm. of the larger rf : 



Distance between external orbital angles 9.75 



Distance between tips of anterior epibranchial teeth . . 10.5 



Length of carapace 8.75 



Horizontal length of chela 9.5 



Height of palm 6. — 



Breadth of third segment of abdomen 4.75 



Breadth of base 



Length 



of penultimate segment of abdomen 



2. Helice subquadrata (Dana). PI. 6, Fig. 1. 



1851. Chasmagnathus subquadratus Dana. Proc. Ac. Nat. Sc. Philadelphia, 1851, p. 251. 



1852. Chasmagnathus subquadratus Dana. U. S. Expl., Exp., Crust., p. 363, pi. 23, f. 5. 

 1865. Chasmagnathus subquadratus Hess. Arch. Naturgesch., Jahrg. 31, 1., p. 152. 

 18S2. Chasmagnathus subquadratus Haswell. Cat. Austral. Crust., p. 106. 



1894. Chasmagnathus subquadratus Ortmann. Zool. Jahrb., Syst., Bd 7, p. 728. 



Stat. 19. Bay of Labuan Tring, west coast of Lombok. 1 cj . 

 Dana made known three species of " Chasmagnathus" , but strictly adhering to the limits 



