192 



FORAMINIFERA OF THE CRAG. 



Entosolenia melo, G. M. Dawson, 1870. Canad. Nat., N.S., vol. 5, p. 178. 



Lagena 1 (bilocular), Parker, Jones, and Brady {Soldani"), 1871. AnD. Mag. Nat. 



Hist., ser. 4, vol. viii, p. 157, pi. ix, fig. 33 

 (= Nodosaria cancellata, d'Orb., 1826, Ann. 

 Sci. Nat., vol. vii, p. 254, No. 29). 



— melo, Brady and Robertson, 1876. Brit. Assoc. Eep. for 1875, p. 190. 



— B'utsclrfi, 18S0. Bronn'8 Klassen, &c, p. 197, and explanation of 



plate, pi. vii, fig. 11. 



— Brady, 1884. Report ' Challenger,' p. 446. 



— — Brady, Parker, and Jones, 1888. Traus. Zool. Soc, vol. xii, part 7, 



p. 222, pi. xliv, figs. 21, 24, 25. 



Fig. 19. Fig. 20. Fig. 21. 

 JOEL 3L 



ft* 



Fig. 19. — Diagram of the ornamentation of Lagena squamosa (Montagu). 



Fig. 20. — Diagram of the ornamentation of Lagena melo (d'Orb.). 



j\ — Jl_ jf Jf Fig. 21. — Diagram of the ornamentation of Lagena hexagoua, Williamson. 



Characters. — For varietal forms of this reticulate Lagena with sub quadrangular 

 meshes we may point to figs. 21 and 24, pi. xliv, ' Trans. Zool. Soc.,' 1888, both 

 as to its shape and the somewhat variable character of the transverse bars, which 

 in L. catenulata, Williamson, become as straight and thick as the longitudinal 

 ridges ; also to fig. 25, in which the cross-bars have been formed only on the 

 upper moiety of the shell (L. sulcata), just as similar but oblique bars occur on 

 the upper part of fig. 34, pi. xiii, ' Phil. Trans.,' 1805. In figs. 35 and 36 of the 

 same plate these interstitial bars have an upward curvature, characterising 

 Nodosaria cancellata, d'Orbigny (see above). The curve, however, of some only 

 of the bars in L. melo is a very different condition from that in L. sejuamosa ; for 

 in the latter each areole represents, as it were, a loop bent in between the verticals 

 (see diagram, fig, 10), whilst in L. melo (diagram, fig. 20) each cross-bar, whether 

 quite straight or somewhat bent, passes direct from one vertical to the other. 



The Lagena described and figured by Terrigi, 'Mem. R. Accad. Lincei,' 

 ser. 4, vol. vi, 1889, p. 112, pi. vi, fig. 1, with doubt as L. melo, evidently has some 

 alliance with Brady's L. favo so -punctata. 



Occurrence. — Lagena melo has been found in the living condition in British 

 seas (Williamson, Brady), in the North Atlantic and Arctic waters (Parker and 

 Jones), in the Mediterranean (Jones and Parker), and originally on the South 



1 This is figured also in ' Phil. Trans.,' 1SG5, pi. xiii, fig. 36, and, together with fig. 35, would 

 come under Z. squamosa, as defined by Brady, if the arched tops of the areola? were really distinctive, 

 but they are not. 



- 'Testae.,' &c, vol. i, p. 91, pi. xcv, fig. a. 



