Manchester Memoirs, Vol. Ixii. (19 17) 57 



112. Lagena aspera, Reuss. 



Lagena aspera, Reuss, 1861 (1862), Sitz k. Ak. Wiss Wien. vol. 



XLIV, p. 305, pi. I, fig. 5. 

 L. aspera, Brady, 1884, Chall. Rep., p. 457, pi. LVII, figs. 7-12. 



Rare and small. 



(The specimens are very slightly different from those separ- 

 ated under the name L. hispida.) 



113. Lagena striata (d'Orbigny.) 



Oolina striata, d'OrBigny, 1839, Voyage Amer. Merid, vol. V, 



pt. 5, "Foraminiferes," p. 21, pi. V, fig. 12. 

 Lagena striata, Brady, 1884, Chall. Rep., p. 460, pi. LVII, figs. 



22, 24, 28, 30. 



Frequent and variable in contour as well as in strength 

 and relative closeness of the striae. In the larger and globular 

 specimens the striae are often broken up at the extreme base of 

 the shell, so that that portion is covered with small tubercles. 



(Many of the specimens might with reason be assigned to 

 weak L. sulcata. The tuberculate base referred to is of constant 

 occurrence in both L. striata and L. sulcata and merely evidence 

 of growth in deep, still water. It reaches an abnormal develop- 

 ment in the form of short spines in the large fossils from the 

 Miocene of Naparina, Trinidad, and in the deeper waters of the 

 North Sea.) 



114. Lagena sulcata (Walker & Jacob.) 



Serpula (Lagena) sulcata, Walker & Jacob, 1798. In Kann- 

 macher's edn. of Adam's Essays Microsc, p. 634, pi. XIV, 



fig-- 5- 

 Lagena sulcata, Brady, 1884, Chall. Rep., p. 462, pi. LVII, 

 figs. 23, 26, 33, 34; and pi. LVIII, figs. 4, 17, 18, etc. 



Frequent. The specimens are slender in form with few 

 thin costae, and are well represented by the form figured by 

 Brady on pi. LVIII, fig. 18 (loc. cit.) The variety interrupta, 

 Will, is very rarely met with, and as might be expected, the 

 costae are weaker and not so elevated as in the type species. 



(Nearly all the specimens, in the abnormal development of 

 the costae, give evidence of growth in deep, still water.) 



114A. [Lagena quinquelatera, Brady.] 



[Lagena quinquelatera, Brady, 1879, etc., RRC. 1881, p. 60. 

 L. quinquelatera, Brady, 1884, FC. p. 484, pi. LXI, figs. 15, 16.] 



