FORAMINIFERA OF THE WEST OF SCOTLAND. 211 



15 Stations. 



Generally distributed, but not common, except at Stn. 18. At practically all the Stns., 

 except Stn. 18, the majority of the specimens are typical, i. e. they are of the square- 

 edged type foreshadowed in Montagu's poor figure and represented by d'Orbigny's Modele 

 No. 95. At Stns. 7, 10, and 18 the curious "lidded" type figured by "Williamson 

 (W. 1858, BEGB. pi. vii. figs. 186, 187) and referred to by us (H.-A. & E. 1913, CI. 

 p. 25) occurs. At Stn. 18 great numbers occur of a very thin-walled opalescent form, 

 in company with the other types, but in greater number than either of them. In this 

 the aperture is flush with the ends, somewhat rounded and constricted, sutures flush, 

 and the whole shell practically cylindrical in section. The calcareous matter must form 

 a very small constituent of the test in this variety as they are practically transparent, and 

 apt to fall to pieces at the sutural lines when wetted or handled. This same type occurs 

 in many of the deeper ' Goldseeker ' dredgings off the west of Scotland and elsewhere. 



27. Miliolina pygmsea (Reuss). (Plate 39. figs. 10-18.) 



Quinquelocidina jiyymcea, Reuss, 1849-50, FOT. p. 384, pi. xlvi. (i.) fig. 3. 

 Miliolina pygmaa, Brady, 1884, FC. p. 163, pi. cxiii. fig. 16. 



16 Stations. 



Generally distributed and often common. The best specimens at Stn. 20, where a 

 complete range from typically quinqueloculine to spiroloculine specimens was obtained. 

 At all the other Stns. the specimens were milioline, though occasional compressed 

 individuals approaching the spiroloculine form were obtained. The spiroloculine forms 

 appear to be practically inseparable from Qumqueloculma tenuis (Czjzek), under which 

 name they have been recorded (cf. Spiroloculina tenuis, ante) for purposes of reference. 

 There can be no doubt that the two species are closely related. The species has 

 hitherto only been recorded as British by us from Clare Island (H.-A. & E. 1913, CI. 

 p. 29). 



28. Miliolina rotunda (d'Orbigny). 



Triloculina rotunda, d'Orbigny, 1826, TMC. p. 299. No. 4. 



Miliolina rotunda, Millett, 1898, etc., FM. 1898, p. 267, pi. v. figs. 15, 16. 



2 Stations. 



Very rare, one or two typical examples only. The species has been recorded as Britisli 

 only by us from Selsey Bill and Clare Island (H.-A. & E. 1908, etc., SB. p. 303; and 

 1913, CI. p. 25), but has possibly been included by other authors under M. seminulum 

 or M. circularis. 



29. Miliolina anconensis (Schultze). (New to Britain.) 



Miliolina anconensis, Schultze, 1854, OP. p. 58, pi. ii. figs. 12, 13. 



Heron-Allen & Earland, 1914, etc., FKA. 1915, p. 568. 



