314. SHRIMPS AND PARASITES. CHAP. xv. 



I cannot name them. The Annelid a very curious 

 fellow I know nothing of. I will name the Sea- 

 spider Nymphon. The treasure of the bottle was, 

 however, the little white shrimp. It is new to 

 Britain, and possibly to science. We will call it, at 

 any rate for the present, Thysanopoda ensifera, New 

 Species. The genus is a very interesting one, and only 

 one species, Thysanopoda couchii, was previously 

 known in our seas." 



A few days later Mr. Norman wrote to Edward : 

 " I gladly accept your suggestion that the Thysano- 

 poda should be called T. Batei (instead of cnsifera), 

 and I am as glad as you are to pay the compliment 

 to Mr. Bate. . . . Your observations on the habits of 

 the Thysanopoda are very interesting." 



Edward evidently supplied his correspondent with 

 abundant examples, for, on the 27th of January 1863, 

 Mr. Norman writes : " The parasite on the fin is 

 AncJwrella rugosa not a common species. I hope 

 you will procure more. The Pagurus cuanensis bore 

 on its back an example of a highly interesting genus 

 of parasitic Crustacea, Peltogastcr. The specimens do 

 not belong to the species hitherto recognised in our 

 seas ; perhaps they are still undescribed." 



Mr. Bate also wrote to Edward during the same 

 month of January : " I think that your last long- 

 legged shrimp may be a new genus. If so, I propose 

 calling it Polledactijlos. . . . There are other things 

 of much interest also. Do try what you can do in 



