CARblNOLOGlCAL STUDIES. 227 



In Euryc. integrifrons the two anterior lobes of the lateral 

 margins of the cephalothorax have the same size, but 

 in the Bombay species the second autero-lateral lobe is a 

 little longer than the first. 



The measurements of a male type-specimen oï Eurycar- 

 cinus orientalis from Bombay are the following: 



Breadth of the cephalothorax 26V3 ^^• 



Length » » » 16 » 



Distance between the external orbital angles . 137.3 ^^ 



The cephalothorax of a male individual of Eurycarcinus 

 integrifrons de Man, however, is 20 mm. broad and 14 

 mm. long (confer: Notes from the Leyden Museum, 1879, 

 Vol. I, p. 56). 



4. Pilumno peus eras sim anus A. M. E. 



Pilumnopeus crassimanus , A. Milne Edwards, Descriptions de 

 quelques espèces nouvelles de Criistacés bracliyures, in: Annales 

 Soc. Entom. de France, T. VII, 1867, p. 278. 



It appears to me highly probable that this species is 

 identical with Heteropanope serraiifrons Kinahan (confer: 

 de Man , in : Notes from the Leyden Museum , Vol. XII , 

 1890, p. 56; pi. 3, fig. 2). The typical specimen of Pi- 

 lumnopeus crassimanus from Port Western , that I examined 

 in Paris , presents the following measurements : 

 Greatest width of the cephalothorax .... 25 mm. 

 Length of the cephalothorax , without the fron- 

 tal lobes 17 » 



Length of the cephalothorax , with the frontal 



lobes 17V8 » 



Distance between the internal orbital angles. BVg » 

 Length of the larger chela, fingers included. 19'/3 » 



Length of the palm 12 » 



Height of the palm near the articulation with 



the fingers 11'/^ » 



I must remark that the number 25 (greatest width) is 



JN'otes from the I^eyden JVIuseum , Vol. XIV. 



