﻿28 Proceedings of the Royal Physical Society, 



Eotifera from " Forth," and four or five others (species previ- 

 ously known to Mr Bryce, but not yet described) have been 

 met with. That there are many still to be found goes without 

 saying. In his list of Eotifera found within a radius of 

 20 miles round Dundee {Scot. Nat., 1891), Hood recorded 

 224 species, including a number from tidal pools in " Tay." 

 If we put the number of species in the Forth area at from 

 250 to 300, we shall probably be within the mark. Exam- 

 ination of material from rock-pools and other marine habitats 

 is sure to furnish a good many interesting additions. In this 

 connection, a paper by Lie-Pettersen on the Marine Kotifers 

 of Norway {Bergens Museums Aarhog, 1905), is well worthy 

 of study. In November 1905 I obtained three species — only 

 one of which {Philodina flaviceps, Bryce) was known to Mr 

 Murray — amongst sea-weed at Morrison's Haven. This 

 occurrence of P, flaviceps in salt-water is interesting, as, with 

 this exception, it has hitherto been found only in fresh-water 

 habitats. The altitudinal range, too, of the Eotifera deserves 

 attention, microscopic, and consequently, no doubt as a rule, 

 very widely distributed though they be. Last month 

 (September 1906) I brought Mr Murray some sphagnum 

 and other damp moss from the summits of Ben Ledi 

 (2875 feet) and Stuc-a-Chroin (3189 feet), which yielded 

 a number of Bdelloids,^ including (from both localities) the 

 rare Callidina incrassata, a species I had previously found 

 only on the top of the East Cairn Hill, Pentlands. 



GASTEOTEICHA. 



The Gastrotricha, or " hairy-backed animalcules," have 

 never, so far as I know, been studied in this district. What 

 I understand to be Chcetonotus larus, MiilL, is fairly common 

 in stagnant ponds and ditches — I have recently found it in 

 material from the marl-pit near Davidson's Mains, a pond 



1 The species noted were : — Philodina rugosa, Bryce, both tops ; F. 

 jlaviceps, Bryce, Ben Ledi ; P. brycei (AVeber), Loch-a-Chroin, 2500 feet ; 

 Callidina hexodonta (Berg.), Ben Ledi; 0. lata, Bryce, Loch-a-Chroin ; 

 C. symbiotica, ZeL, Ben Ledi; C. russeola, Zel. , Stuc-a-Chroin ; C. ietra- 

 odon, Ehr., both tops; C. incrassata, Murray, both tops; C. plicata, Bryce, 

 both tops ; C. quadricornifera, Milne, Ben Ledi ; Rotifer vulgaris, Ben Ledi ; 

 Adineta gracilis, Janson, Ben Ledi; A. barbata, Janson, Ben Ledi and 

 Loch-a-Chroin; Distyla fiexilis, Gosse, Loch-a-Chroin; Golurus obtusus, 

 Gosse, Ben Ledi. 



