AMPHIPODA. 



299 



The males of this species may he distinguished by the 2nd gnathopods ; the females 

 in the genus Platophium are very much alike, but m this case may he known by the 

 triangular expansion of the 1st joint of the 1st and 2nd perseopods. 



Colomastix, Grube, 1861. 

 Colomastix pusilla, Grube. 



Cratippus tenuipes, Sp. BATE. 

 Exunguia stilipes, Norman. 

 Pearl oyster washings, Muttuvaratu Paar 2 sjjecimens. 



EXPLANATION OF PLATES. 



List of Abbreviations used with the Figures. 



c ami n ph. = cephalon, head. 



o.l. = ocular lobe. 



ami 1 ., mil-. = upper and lower (1st and 2nd) antennas. 



m. = mandible. 



inp. = mandibular palp. 



ma; 1 . = 1st maxillae. 



I. = posterior lip. 



nix//. = rnaxillipeds. 



</*., gn 2 . = 1st and 2nd gnathopods. 



pp. 1-5 = peraeopods, 1st to 5th pairs. 



up. l-3 = uropods, 1st to 3rd pairs. 



t. telson. 



pi 3 . = 3rd segment of the pleon. 



wr. = urus, last 3 abdominal segments. 



Fig. 1. Parascelus parvus, Claus. 



2. Elsia indiea, Giles. 



,, 3. Ichnopus tn a mi, Costa. 



i. Socarnella bonnieri, n. gen. et sp. 



PLATE I. 



Fig. 



5. Vijaya tenuipes, n. gen. et sp. 



6. Lysianax cinghalensis, Stebbinu. 



7. ,, caslochir, n. sp. 



9. Urn/it"'' spinidigitus, n. sp. 



PLATE II. 



Fig. 10. Plaiyischnopus herdmani, n. sp. 

 1 1. Ampelisca hidens, n. sp. (see alstnPl. IV.). 



Fig. 12. Ampelisca scabripes, n. sp. 

 ,, 13. brachyceras, n. sp. 



Fig. 14. Ampelisca cyclops, a. sp. 



PLATE III. 



Fig. 15. Ampelisca clieweuxi, a. sp. Fig. 17. Leucothoe hwnelli, n. sp. 



10. Gallea tecticauda, a. gen. et sp. (see also 17a. stegoceras, n. sp. 



PI. VIII.). ,, 18. Anamixis stebbingi, n. sp. 



Fig. I'.). Slniiithov rjitlle-nxi*, n. sp. 



