196 FORAMINIFERA OF THE CRAG. 



Occurrence. — L. reticulata exists in the Arctic Ocean and in the British seas. 

 In the fossil state it occurs in the Eocene Tertiary of the Paris Basin, in the Diestian 

 of Antwerp, and in a Tertiary Marl of New Zealand. The figured specimen was 

 from Bridlington, and, though not from the Pliocene Crag, we describe it here 

 both in correction of a former error, and on account of its close relation to 

 L. hexagona and its allies. 



14*. Note on Lagena squamosa (Montagu), 1803. Diagram, woodcut, fig. 19. 



At page 39 of Part I, 1866, Lagena reticulata was mistaken as typical of 

 L. squamosa ; and one specimen of the latter species had been obtained from the 

 Pleistocene bed at Bridlington, then regarded as "Crag" of Pliocene age (page 

 40). Although not coming within our present list of the Foraminifera of the Crag, 

 it is of sufficient interest for us to offer here some remarks on L. squamosa. 



In the ' Philos. Transact.,' 1865, p. 354, Parker and Jones referred the name 

 " squamosa " to such Lagense as have both four- and six-sided areolee formed of the 

 longitudinal and cross ridges ; and for illustration gave figs. 40 and 41 in pi. xiii, 

 and figs. 11 a, b, in pi. xvi; the first set having delicate hexagons, diffused over the 

 surface without any definite order (L. reticulata) ,- and the latter having the meshes 

 in a vertical succession (L. hexagona). In his Report of the ' Challenger,' p. 471, 

 H. B. Brady has shown that L. squamosa (Montagu) has a vertical and parallel 

 arrangement of subquadrangular areolae, arched (convex) on their upper borders, 

 and corresponding with Montagu's obscure sketch. Brady's figs. 28 and 29 still 

 more closely match Wallich's fig. 21, pi. v, in ' The North Atlantic Sea-bed,' 1862. 



Characters. — In L. squamosa the iuterstitials do not coalesce with or pass into 

 the verticals at right angles, but have their ends curved down against the latter, 

 so as to appear to pass below the curve next below. See the diagram, fig. 19, 

 page 192. 



A near ally to L. squamosa is evidently Seguenza's Orbulina foveolata, ' Mioc. 

 Monot. Messin.,' 1862, p. 37, pi. i, figs. 1,2. This is represented as globose, with 

 a radiate aperture in its flattened apex, and ornamented with nearly vertical rows 

 of subpolygonal little pits, which have a squamose appearance on the sides, and 

 are represented in the end view as having raised interstices. 



Occurrences. — Lagena. xijiiaviosa is most commonly found in the shallow waters 

 of high latitudes; 1ml specimens were obtained by the 'Challenger' from com- 

 paratively shallow waters (390 to 410 fathoms) off the Danish West Indies, and 

 off Sydney, New South Wales. Specimens were also found at one station in the 

 Xerl li Pacific (2300 fathoms), and at another in the South Atlantic (1990 fathoms). 



