i897-9 8 -] The Upper Elf Loch, Braids. 373 



the Beautiful Floseule (Floscularia ornata) ; two of the Tube- 

 dwelling Kotifers (Melicerta ringens and M. tubicolaria) ; and 

 what has been described as " perhaps the most beautiful of all 

 the rotifers," Stephanoceros Eichhornii — a very rare rotiferon 

 in Scotland. The 2nd order, the Bdelloida, has been increased 

 by seven species ; whilst the 3rd order, the Plo'ima, — the 

 largest of all, — has had no fewer than sixty-six species added 

 to it — making in all a record of ninety-seven species. Though 

 none of these species are new to science, several of them are 

 very rare. We are much indebted to Mr John Hood for his 

 invaluable aid in the identification of the Eotifera, — a group 

 with which he is so well acquainted. We have been favoured 

 with the following notes by Mr Hood on three of the species 

 enumerated in our list. The first refers to Euchlanis pro- 

 patula (No. 48 of list), regarding which Mr Hood writes as 

 follows : — 



Mr Gosse was the first to describe this species (in ' The Rotifera, or 

 Wheel-Animalcules,' vol. ii. p. 87), by the name of Diplois propatula, 

 illustrated by two figures, a dorsal view and a lateral one. The dorsal 

 view is a very good likeness of the creature, and a sufficient guide to its 

 identity ; but, on the other hand, the lateral view is very unsatisfactory, 

 and not at all like it. It has been subsequently described by Dr Burn and 

 Mr Bryce at its proper place in the genus Euchlanis. Its generic characters 

 are undoubtedly those of a Euchlanis. Its ventral plate is a little larger 

 than the dorsal one, which is quite the reverse of all the other species of 

 the genus ; but, notwithstanding this, the jaws, internal organs, and foot 

 are those of a Euchlanis. 



The next note refers to Salpina marina (No. 90 of list), 

 which certainly calls for some explanation, as occurring here 

 in a fresh-water loch. Mr Hood says : — 



Mr Gosse has doubtless erred, at p. 39 of the Supplement to his mono- 

 graph on the Rotifera, in placing this as a marine rotifer. The only 

 example he described from was a dead one he found in a tube of water 

 from the Firth of Tay which I sent him in 1886, and which contained 

 Notholca spinifera and a few other marine forms. I have no doubt this 

 Salpina had been introduced accidentally into the tube by me— possibly 

 it had been in the dipper when I filled the tube with marine forms. I have 

 never myself found a Salpina in a marine habitat. 



The last note is on Triphylus lacustris, Huds. (Furcularia 

 lacustris, Ehr.), (No. 97 of list), regarding which Mr Hood 

 writes : — 

 This species has only recently been found in Britain. Dr Hudson placed 



