250 MESSRS. E. HERON-ALLEN AND A. EARLAND ON THE 



and 22, and frequently at Stn. 17, which was the best Stn. for the species. A double 

 specimen was found at this Stn. 



182. Lagena fasciata (Egger). 



Oolina fasciata, Egger, 1857, MSO. p. 270, pi. v. (i.) figs. 12-15. 

 Lagena fasciata, Reuss, 1802, FFL. p. 323, pi. ii. fig. 24. 



10 Stations. 



More widely distributed than L. annectens and much more abundant, but very few 

 of the specimens are strongly marked. They run imperceptibly into the variety faba. 

 Typical examples should possess curving raised bands of shell-substance near the 

 marginal edge. Only one strongly-marked individual was found, at Stn. 21, and this 

 was decorated with rudimentary costae between the bands on the inferior portion of the 

 shell. Pedunculate specimens occur at Stns. 3 and 4. The species has only been 

 recorded by us as a recent British form (H.-A. & E, 1913, CI. p. 83 ; and 1913, NSH. 

 p. 131), but it appears in Wright's list from Post-tertiary deposits at Magheramore 

 (W. 1910-11, ECM. p. 15) and elsewhere. It has no doubt been included in the 

 numerous records of L. quadricostulata, Beuss. 



183. Lagena fasciata, var. faba, Balkwill & Millett. 



Lagena faba, Balkwill & Millett, 1884, FG. p. 81, pi. ii. fig. 10. 

 Lagena fasciata, var. faba, Heron-Allen & Earland, 1913, CI. p. 84. 



15 Stations. 



This is the most widely distributed and abundant type of its group in the dredgings, 

 ocL'urring at most Stns. and often in considerable numbers. It differs from L. jasciaia 

 in the reduced prominence of the marginal costae, which are but very slightly raised, 

 and are of a milky texture as in L. annectens, thus occupying a position midway 

 between L. annectens and L. fasciata, but its most permanent characteristic appears to 

 be the surface-texture, which was compared by its author to orange-peel, and appears 

 to be a constant feature. 



184. Lagena annectens, Burrows & Holland. (New to Britain.) 



Lagena annectens, Burrows & Holland in Jones, Parker, & Brady, 1806, etc., MFC. 1895, p. 203, 

 pi. vii. fig. 11. 

 „ „ Heron-Allen & Earland, 1914, etc., FKA. 1915, p. 662. 



14 Stations. 



This rather unsatisfactory little species, in which the marginal faces of the shell are 

 decorated with curved bands of denser shell-substance, forming, as it were, a horseshoe- 

 marking on the face of the shell, is scantily represented in the dredgings, and is often 

 hardly separable from L. fasciata and its variety faba. The best specimens at Stn. 4, 

 where trigonal examples were observed. 



