168 DR. J. &. DE MAN ON THE PODOPHTHALMOUS 



tiyely longer than those of M. elegans, being scarcely shorter 



than the propodites. For example, the dactylopodites of the 



legs of the penultimate pair are in proportion to the propodites as 



4^ : 3f , but in M. elegans as 4| : 3. 



Dimensions of the larger specimen : — 



miUim. 



Breadth of the cephalothorax (distance between the 



second antero-lateral teeth) llf 



Length of the cephalothorax 7f 



Length of the larger hand (fingers included) .... II5 



Genus 8esaema, Say. 



^ Section A. — Sesarmcs without an epibranchial tooth behind the 

 J.;. ' external orbital angle, and in which the upper surface of 



the palm of the hands of the male presents no oblique, 

 parallel, pectinated ridges. 



. X ^ ^^ 91. Sesaema Aubryi, A. M.-Edio. 

 ij^-^^"^ , , Sesarrna Aubryi, Alph. Milne-Edwards, Nouv. Arch, du Museum Hist. 

 ^v-^*-* "^ Nat. 1869, t. V. Bulletin, p. 29, and 1873, t. ix. p. 307, pi. xvi. fig. 3. 



Sesarrna (Holometopus) Aubryi, Miers, Proc. Zool. Soc. ]877j p- 137 J 

 de Man, Notes from the Leyden Museum, vol. ii. p. 30. 



Thirteen, specimens (9 d" , 4 $ ) were collected in the Mergui 

 district, twelve of which were captured in fresh water at Sullivan 

 Island. 



Sesarrna Aubryi has hitherto been found in the seas of New 

 Caledonia, Duke-of-Tork Island, and at Amboina ; it would thus 

 appear to inhabit the seas of the whole Indo-Malayan Archi- 

 pelago. 



. Section B. — Sesarmce without an epibranchial tooth behind the 



externa] orbital angles, and in which the upper margin of 



the palm of the anterior legs of the male bears two or more 



oblique, parallel, minutely pectinated ridges. 



So far as I am av\are, six Oriental species have been described, 



presenting the characters of this section: — 



Sesarrna quadrata, Fabr., from the East Indies. 



afflnis, de Haan, from Japan. 



picta, de Haan, also from Japan. 



tmgulata, M.-Edw., from Celebes and the Philippines. 



erythrodactyla, Hess, from Sydney. 



aspera, Heller, from Ceylon, Madras', and the Nicobars. 



