370 
ME. W. K. PAEKEE AND PEOEESSOE T. E. JONES ON SOME 
Our figures indicate a normal specimen of this form from the marginal plateau off 
Ireland, where it is common and of middle size at 78 fathoms. 
T. Sagittula is world-wide, and common in many Tertiary deposits. 
Textularia agglutinans, Y ax. jpygmcea, D’Orbigny. Plate XV. fig. 22 (Arctic); Plate 
XVII. figs. 78 a, 78 b (North Atlantic). 
This is the common, small, hyaline or clear-shelled, perforate Textularia ; its sandy 
analogue is T. Sagittula. Normal specimens are figured here. 
We have it in the mixed sands from Norway, common and middle-sized. 
In the North Atlantic it is rather common and small at 78 and 90 fathoms on the 
marginal plateau ; and it is rare and small at 200 and 415 fathoms, rare and middling 
at 223 and 338 fathoms on the same ground: in the abyssal depth (Boreal) it is rare 
and small at 2033 fathoms; and nearer to the Bank it is very rare and very small at 
1450 fathoms. 
T. jpygmcea , D’Orb. Modeles, No. 7 (the same as T. aciculata, D’Orb., Ann. Sc. Nat. 
vol. vii. p. 263, pi. 11. figs. 1-4), has a distribution similar to that of the other chief 
"varieties. 
Textularia agglutinans, Var. carinata, D’Orb. Plate XVII. figs. 79 a, 79 b (N. Atlantic). 
The shell of T. carinata , D’Orb. (For. Foss. Vienn. p. 247, pi. 15. figs. 32-34), is flatter 
than that of either T. pygmcea or T. Sagittula ; the edges becoming very thin and more 
or less produced into a sharp keel ; and the chambers extend backwards irregularly. 
The specimen figured is a small and feeble individual of this variety. Still more flat- 
tened is our new variety T. Folium , from the Australian coast, Plate XIX. fig. 19. 
T. carinata in the London Clay frequently has a spiral arrangement of its earliest 
chambers, such as is seen also in many other varieties of Textularia. In fig. 79 a a 
faint tendency to a coil is seen at the apex of the specimen. 
On the marginal plateau off Ireland T. carinata occurs rather common and small at 
78 and 90 fathoms. It is found in the Adriatic and other seas, extremely large between 
Socotra and Kurachee ; also fossil in the Tertiary deposits. 
Textularia agglutinans , D’Orb., Var. biformis , nov. Plate XV. figs. 23, 24 (Arctic). 
These very small Textularice have a sandy shell, often of a rusty colour, with scarce 
any shell-substance proper. They have a spiral commencement (a not uncommon 
feature in Textularia), and the later chambers are subquadrate, arranged alternately. 
This may be regarded as an arrested form of T. annectens , Parker and Jones (Annals 
Nat. Hist. 3rd ser. vol. xi. p. 92, fig. 1) ; for, if better developed and carried on with 
uniserial chambers, it would be equivalent to that variety. It is common in the Gault 
and Chalk with T. annectens. 
Textularia biformis is common and small at the Hunde Islands in 60 to 70 fathoms. 
