[CKYI.ON PEARL OYSTER FISHERIES 1904 SUPPLEMENTARY RETORTS, No. XII.] 



REPORT 



OX THE 



CUMACEA 



COLLECTED BY 



Professor HERDMAN, at CEYLON, in 1902. 



BY 

 W. T. CALMAN, D.Sc. 



[With PLATES I. to V.] 



This paper deals with the Crustacea belonging to the Order Cumacea* collected in 

 < ieylon by Professor W. A. Herdman, F.R.S., and his Assistant, Mr. Hornell. 

 The following ten sjjecies are described in detail, and all of these are regarded as new 

 except one : 



1. Eocwma iaprobanica, n. sp. 6. Cyclaspis herdmani, n. sp. 



2. Eocwma affinis, n. sp. 7. Cyclaspis hornelli, n. sp. 



3. Eucuni'i -nirsii (Kossmaxx). 8. Iphinoe marrobrachium, n. sp. 



4. Cyclaspis costata, n. sp. 9. Paradiastylis brachywa, n. sp. 



5. Cyclaspis picta, n. sp. 10. Nannastacus stebbingi, n. sp. 



In addition to these the collection includes the following six species which are 

 not dealt with more fully here for the reason that they are represented by solitary 

 or immature specimens, or that they belong to species of which more abundant 

 material is at hand in other collections now in course of examination. The list is 

 given in order to complete, as far as possible, the record of the Ceylon fauna as 

 shown by the present collection : 



* .Mr. Stebmxg has shown (Willey's ' Zool. Results,' Part V., Crustacea, p. 609) that the generic 

 name Cuma, H. Milxe-Edwards, is preoccupied and must give way to Bodolria, Goodsie, and he has 

 proposed to change the name of the order to Sympoda. So far as I am aware, no rule of zoological 

 nomenclature is infringed by retaining the familiar name Cumacea, which may still be thought not 

 " wholly inappropriate and misleading " for an order comprising many genera with names like Pseudocuma, 

 Leptocuma, E< uma and so forth. 



