122 CRUSTACEA. 



a. Male. Singapore. Presented by the Earl of Derby. 



b. Female. Singapore. Presented by tlie Earl of Derby. 



c. Female. Torres Straits. Presented by J. B. Jukes, Esq. 



d. Female. Indian Ocean. 



e. Young ? Tail spineless, body strongly keeled, keels spinose. 



S. Latreillii, Leach, Diet. Sc. Nat. xiv. 537. 



LIMULUS longispina, V. d. Hoeven. Hist. Lim. 32, t. 5, /. 1,2. 

 Edw. Crust, iii. 549. Lim. tridentatus, Leach, Diet. Sc. Nat. 

 xiv. 537. 



a. Male, adult. 



b. Female, adult. China. Presented by J. R. Reeves, Esq. 

 cf. Young, females. China. Presented by J. R. Reeves, Esq. 

 g. Male, adult. Japan. From the Leyden collection. 



h. Female, young. Japan. Fiom the Leyden collection. 

 t ;, k. Young. China. From Mr. Wenham's collection. 

 I. Young. China. Presented by Capt. Sir E. Belcher, R.N. 



