PHYSOPHORA. 85 



satisfactorily from another. I will only remark that if the hydrocysts of P. Fhilippl (Koll.) 

 and P. hydrosiatica (Vogt), which I am strongly inclined to think with Leuckart are one and 

 the same, are really devoid of tentacles, mine is a totally distinct species. 



In conclusion, I will remind the reader that fig. 1, PI. VIII, is no better than a diagram, 

 the original sketch having been very hasty and imperfect. 1 imagined 1 should meet with 

 plenty more Physophorce, and could tinish my drawing at any time ; but in three years and a 

 half I never took another. The other drawings were made very carefully, and are, I believe, 

 accurate. 



