FOiUMINIFERA OF THE WEST OF SCOTLAND. 233 



11 Stations. 



Generally distributed and often very common. All free except at Stns. 20 and 25, 

 where attached individuals were found with the characteristic extension of white cement 

 ramifying from the test. 



116. Valvulina COnica, Parker & Jones. 



Valvulina triangularis, ,var. conica, Parker & Jones, 1865, NAAF. p. 40G, pi. xv. fig. 37. 

 Valvulina conica, Brady, 1884, FC. p. 392, pi. xlix. figs. 15, 16. 



1 Station. 



One small free specimen at Stn. 4. 



Clavulina, d'Orbigny. 



117. Clavulina obscura, Chaster. 



Verneuilina polystropha (Reuss), "dimorphous form," Wright, 1885-6, BLP. p. 320, pi. xxvi. 



fig. 2. 

 Clavulina obscura, Chaster, 1892, FS. p. 58, pi. i. fig. 4. 



„ „ Heron-Allen & Earland, 1913, CI. p. 59, pi. iv. fig. 6. 



4 Stations. 



Occasional specimens of this rare little form at the Stns. 



Subfamily Buli mining. 

 Bulimina, d'Orbiguy. 



118. Bulimina pupoides, d'Orbigny. 



Bulimina pupoides, d'Orbigny, 1846, FFV. p. 185, pi. xi. figs. 11, 12. 

 Brady, 1884, FC. p. 400, pi. 1. fig. 15. 



19 Stations. 



Almost universally distributed, but less abundant than B. marginata or B. elegans. 

 Typical specimens are common, the best at Stns. 7, 22, 23, but intermediate forms 

 linking this with B. elegans and B. gibba, Fornasini, also occur at most Stns. 



119. Bulimina elegans, d'Orbigny. 



Bulimina elegans, d'Orbigny, 1826, TMC. p. 270. No. 10,.Modele No. 9. 

 „ Brady, 1884, FC. p. 398, pi. 1. figs. 1-4'. 



20 Stations. 



If anyone wishes to realise the absolute impossibility of classifying Foraminifera on 

 the strictly rigid specific lines aimed at by zoologists working at higher groups, they 

 need only refer to the beautiful series of illustrations to Pornasini's paper on the Adriatic 

 Buliminge (MASIB. ser. 5, vol. ix. pp. 371-3S1). After studying this plate and working- 

 out such a series of dredgings as those under consideration, or, indeed, any series taken 



