Mr. E. J. Miers on Malaysian Crustacea. 471 



base ; their apices are somewhat blunt. Such, at least, is the 

 form of spicules taken from the vicinity of the distal opening 

 of the sac (PI. XV. fig. 19). 



XlPHOSURA. 



Limulus moluccanus, Latr. 

 An adult male. 



Limulus rotundicauda, Latr. 



An adult female. 



There is in the collection a specimen of small size (length 

 of carapace about 1| inch) which probably belongs to this 

 species. As in all young specimens I have seen, the spines 

 of the dorsal surface of the cephalothoracic shield are con- 

 siderably developed. None of the above has any special 

 indication of locality. 



EXPLANATION OF THE PLATES. 



Plate XIII. 



Fig. 1. Cyclocceloma tuberculatum, gen. et sp. nov. (nat. size). 



Fig. 2. Inferior view of buccal, antennal, and orbital region of the same 



(X 2 diam.). 

 Fig. 8. Inferior view of part of the antennal and orbital region of Liomera 



Rodgersii, Stimpson (X 4 diam.). 

 Fig. 4. Pilumnopeus granulosus, sp. n. (X 1| diam.). 

 Fig. 5. Inferior view of buccal, antennal, and orbital region (x 2 



diam.). 

 Fig. 6. Outer view of cbela of the unique example (a female) (x 1£ 



diam.) . 



Plate XIV. 



Fig. 1. Telphusa sumatrensis, sp. n., <$ (x \\ diam.). 



Fig. 2. Outer view of larger hand of the same (X 1| diam.). 



Fig. 3. Outer view of hand of Sesarma granosimana, sp. n., $ (x 1| 



diam.). 

 Fig. 4. Third maxillipede of Pinnotheres obesus, Dana ? (considerably 



magnified). 

 Fig. 5. Matuta circtdifera, sp. n., <$ (nat. size). 

 Fig. 6. Eupagurus japonicus, Stimpson ? (nat. size). 

 Fig. 7. Rostrum and ophthalmic scales of the same (x 2 diam.). 

 Fig. 8. Coxae of the fifth ambulatory legs of male Caniobita perlata, var. 



affinis, n. (x 2 diam.). 



Plate XV. 



Fig. 1. Antero-lateral margins of Dromia (Dromidia) orientalis, sp. n., 

 showing the form and disposition of the teeth (nat. size). 



Fig. 2. Sternal sulci of the same (nat. size). 



Fig. 3. Rostrum of Atya moluccensis, sp. n. (nat. size). 3 a, teeth of 

 the inferior margin of the same (magnified). 



Fig. 4. Third cephalothoracic leg of the same (nat. size). 



32* 



