Mr. E. J. Miers on Malaysian Crustacea. 313 



the distal end of its upper margin ; the whole of the outer 

 surface of the wrist is covered with short transverse ridges, 

 which pass into the form of granules on the outer surface of 

 the palm ; on the inner surface of the wrist is a spiniform 

 tooth ; there are no pectinated crests on the upper surface of 

 the palm ; the mobile finger is granulated above at base, and 

 both fingers are denticulated on their inner margins. The 

 merus of the ambulatory legs is considerably dilated, and 

 armed with a small spine near the distal end of its upper 

 margin ; the two following joints are marked with longi- 

 tudinal raised lines; the dactyli are slender. The post- 

 abdomen of the male is rather broad ; its terminal joint consi- 

 derably narrower than the penultimate joint. Length 7 lines, 

 breadth 8 lines. 



Indo-Malayan seas (no definite locality). A male and 

 female are in the collection. 



S. granosimana is nearly allied to S. Dehaanii, M.-Edw., 

 but is distinguished by the existence of a tooth on the inner 

 margin of the wrist, the more dilated merus of the ambu- 

 latory legs, &c. The legs, in the two specimens I have 

 examined, are not clothed with long hairs as in S. Dehaanii. 



S. trapezium, Dana, which is also apparently allied to this 

 species, is described as having the carapace much narrowed 

 behind, the abdomen of the male narrow, and as having a 

 dense patch of hair near the base of the mobile finger *. 



** Carapace with a second (epibranchial) tooth behind the 

 extraorbital tooth. 



Sesarma bidens (De Haan). 



Indo-Malayan seas (one adult male without definite 

 locality) . 



Sesarma tmniolata. White (ined.), Miers. 



Borneo (an adult male). In this specimen and in the 

 others in the Museum there exist but few traces of the tufts 

 of hair with which, according to Mr. de Man (Notes Leyden 

 Museum, ii. (v.) p. 26), the carapace is usually covered. 



Sesarma Bocourti, A. M.-Edwards. 



Borneo (two males and a female) . The males agree very 

 well with the diagnosis of A. M.-Edwards, and the longer 



* I have not been able to compare S. granosimana with the description 

 of Sesarma chirogona, Targioni-Tozzetti, "Crostacei Brachiuri ed Ano- 

 muri," in ' Zoologia della R. pirocorvetta Magenta/ Firenze, 1877, 8vo, 

 as I have not yet had an opportunity of consulting this important work. 



