The Bdelloicl Rotifer a of the Forth Area. 217 



known species {Philodina fiavice-pii, Bryce, MS.) in abund- 

 ance, and two others which I could not name. 



The list of species here recorded numbers 53. 



Other five species previously discovered by Mr Bryce, but 

 not yet named, were also found. 



Messrs Scott and Lindsay, in their list of Kotifera from the 

 Upper Elf Loch (14), enumerate 11 bdelloids, 4 of which 

 were not found in any of Mr Evans's collections. Adding 

 those, we have a total of 62 species, the largest local list of 

 Bdelloid Eotifers I know of. 



The four species given in Scott and Lindsay's list which 

 have not been found in any of Mr Evans's collections are — 



Rotifer actinurus, Ehr. 

 B. haptieits, Gosse. 

 Fhilodina megalotrocha, Ehr. 

 Gallidina hidens, Gosse. 



Rotifer hapticus I regard as identical with B. macroceros, 

 Gosse, which, however, is not otherwise recorded for the 

 Forth area. Callidina hidens is so insufficiently described 

 that I find it impossible to guess what animal was identified 

 as this species. As Mr Evans also collected in the Elf Loch, 

 the same animal is probably included in this list under 

 another name. 



Several common species do not occur in either of the lists, 

 although they must surely be found in the district sooner 

 or later. Such are Botifer macroceros, R. neptunius, Adineta 

 tuherculosa. A number of others, though less common, are 

 also quite likely to occur. 



The list of literature contains only the works referred to 

 in the text. When species have been discovered subsequent 

 to the completion of Hudson and Gosse's Monograph (5) 

 (1889), the work in which the original description occurs 

 is cited. The works of Zelinka (19, 20), Janson (6), and 

 Jennings (7) are valuable for the extensive bibliography 

 which they contain. The works are referred to in the text 

 by their numbers (enclosed in brackets) in the list on 

 page 228. 



