232 CEYLON PEARL OYSTEE REPORT. 



Family : PONTOPOREIID^E. 

 Urothoe spinidigitus, n. sp. (C). 



Family: AliGISSIDiF, nov. 



Argissa hamatipes (Norman) (B). Greenland (Hansen) ; Norway; Britain. 

 Platyischnopus herdmani, n. sp. (C). 



Family : PH( )XOCEPHALIJ )JE. 

 Leptophoxus uncirostratus (Giles) (G). Bay of Bengal. 



Family: AMPELISCID.E. 

 Ampelisca tridens, n. sp. (B) (C) (D) (F). 

 A. scabripes, n. sp. (A) (C) (H). 

 A. brachyceras, n. sp. (B) (C). 



A. brevicornis, Costa (B) (F). Atlantic; Mediterranean. 

 A. cyclops, n. sp (B) (F). 

 A. chevreuxi, n. sp. (B) (( '). 



Family : AMPHILOCHI1 )M. 



Amphilochus neapolitanus, Della Valle (B). Mediterranean; Britain. 

 Gallea tecticauda, n. gen. and sp. (B) (C) (D) (F). 



Family: LEUCOTHOID.E. 



Leucothoe spinicarpa (Abild.) (A) (B) (C) (F) (H). Probably cosmopolitan ; 



from Greenland to the Azores and perhaps Australia. 

 L. hornelli, n. sp. (A) (D) (G). 

 L. stc.goceras, n. sp. Singapore. 



Family: ANAM1XIP.E (Stebbing, 1898*). 

 Anamixis stebbingi, n. sp. (B). 



Family: STENOTHOID^.f 



Stenothoe marina (Sp. Bate) (C). Norway; Britain; France; Mediterranean. 

 S. monoculoides (Mont.) (C) (F). do. do. ' do. do. 



S. gallensis, n. sp. (B) ((J) (F) (H). 



Family: (EDICERID.E. 



Perioculodes serra, n. sp. (B) (('). 



Synchclidium brevicarpum (Sp. Bate) (C). Britain; Norway. 



* 'Ann. and Mag. Nat. Hist. 1 (7), vol. IV., 1898, p. 210. 



i Owing to the connexion between Amphilochidse ami Lsucothoidse shown by Gallea, I have placed the 

 latter family before instead of after Stenothoidse. 



