III. FURTHER RECORDS OF INDIAN 



BRACKISH WATER MYSIDAE WITH 



DESCRIPTIONS OF A NEW GENUS 



AND SPECIES. 



By WAI.TKR M. Tattersai.!,, D.Sc, Keeper of the Manchester 



Museum. 



(Plates xii-xiii.) 



Ill 1908 I described two new species of Mysidae from brackish 

 water, near Calcutta (liec. Ind. Mus., vol. ii, pt. 3, 1908). Since 

 that time, Dr. Annandale and his staff have continued their 

 exploration of the brackish waters of India and have sent to me 

 from time to time, samples of the Mysidae they found in their 

 material, for identification. Most of the specimens sent me were 

 found to belong to one or other of the two forms I had previously 

 described. They have proved to be abundant and widely distri- 

 buted on the east coast of India. Among the material sent me, 

 however, I found a bottle of specimens from a brackish creek near 

 Bombay, which proved to belong to an undescribed species requir- 

 ing the formation of a new genus. 



In the present paper, I give a description with figures of the 

 new specie ; and a complete list of all the records for the two 

 previously described forms. These three species are, so far as I am 

 aware, the only Mysidae known from the littoral of India. Many 

 purely marine species must still await discovery and it seems 

 probable that further work in the brackish waters of the west 

 coast will bring to light undescribed forms. 



I am much indebted to Dr. Annandale for the opportunity of 

 examining the material here dealt with and to Mr. S. W. Kemp for 

 valuable notes on the occurrence of the species and for a complete 

 list of known localities. To both these gentlemen I desire to 

 express my best thanks. 



Macropsis orientalis, Tattersall. 

 M. orientalis, Tattersall, Rec. Ind. Mus., vol. ii, pt. 3, 1908. 



Complete list of localities. 



(I). Chittagong town, brackish ponds near river. {N . An- 

 nandale and 5. W . Kemp.) 



(2). Dhappa, near Calcutta, brackish ponds {N . Annandale). 

 Type locality. 



