10 GOÉS, RETICULARIAN RHIZOPODA OF THE CABIBBEANSEA . 



L a g e 1! «T 



are but scantily represented on our localities. As the more remarkable forms I 

 have noted : 



L. laevis Montag. (L. vulgaris Will.) appears in two forms, one highly developed 

 with a long neck, and another stunted, starved and with a short neck or with a thick- 

 edged raouth, nearly without neck; such pigmy forms are often somewhat compressed 

 and sonietimes two-chambered; 



L. laevis var. desmopliora Rym. Jones (Java deep-sea Lägenas; Träns. Lin. Soc. 30, 

 p. 54, t. 19, figg. 23 — 24). Our form differs in having the chain-like ornamentation 

 wound in a whole spiral from the bottom to the middle of the neck; the Java speci- 

 mens being furnished with several longitudinal garlands or chains. It is one of the 

 finest forms, well developed, but very scarce, from the ooze; 



L. laevis var. marginata Walk & Jac; it is of the same shape as Entosolenia margi- 

 nata var. lagenoides Will. (Brit. rec. Formf. p. 11, fig. 25), L. lagenoides Rss. (Lage- 

 noid: Wien. Ak. S. Ber. 1. 46, p. 324, t. 2, figg. 27 — 28) and L. vidgaris var. alato- 

 marginata Rym. Jones (loc. cit. p. 60, t. 19, fig. 44); it occurs in the ooze, scarce and 

 in a pigmy state ; 



L. laevis var. tetragona Park. & Jones (Phil. Träns. 155, 1. t. 18, fig. 14), pretty 

 well developed, but scantily represented in the ooze. 



L. squamosa Montag., scarce and starved. 



L. distoma polita Park. & Jones (N. Atl. and Aret. Oc. ; Phil. Träns. 155, L p. 357, 

 t. 13, fig. 21). It raay be considered as a variety of L. l^vis; is found in the ooze 

 well developed but scarce; 



The insignificant part that the Lägenas seem to take in the formation of the chalk- 

 ooze and our scanty supply of specimens may sufläciently excuse my passing över their 

 synonymy, for which, in amjjlissima forma, I refer the student to Messrs Parkers', 

 Jones' and Brady's admirable treatise on the Crag-Foraminifera (Palasont. Soc. 19). 



NodosariiitTi radicula Lin. 



Tab. I, fig. 1—2. 



If Nod. radicula L. and Nod. scalaris Batsch, both having the same simple 

 plan of growth — their chief difference being the smoothness or striation of the shell 

 — are to be considered as the original types of this genus, two series of forms wonld 

 be derived from them. Each of these series would then comprise: 



