FROM THE LAGOON AT FUNAFUTI. 193 
PLANORBULINA LARVATA, Parker 3° Jones. 
Planorbulina vulgaris, var. larvata, Parker & Jones, 1860, Ann. Mae. 
Nat. Hist. ser. 3, vol. v. p. 294. 
P. larvata, Parker & Jones, 1865, Phil. Trans. vol. cly. p. 379, pl. xix. 
fig. 3a, b. 
P. larvata, P. & J., Egger, 1893, Abhandl. bayer. Ak. Wiss., math.- 
phys. Cl. ii. vol. xviii. p. 189, pl. xiv. fig. 31. 
Amongst the several planorbuline forms this is one which 
possesses most individuality, the specimens being nearly all 
characteristic. 
Lagoon, Funafuti. Sample 1 (10 fathoms); sample 4 
(23 fathoms); sample 6 (21 fathoms); sample 7 (24 fathoms) ; 
sample 8 (26 fathoms). 
PLANORBULINA LARVATA, Parker J Jones, var. CRISPATA, Nov. 
(Pl. 20. fig. 5.) 
This is a curious aberrant form in which the several series of 
chambers have been added to in a semicircular manner, instead 
of a discoidal, giving rise to a curled or semilunar-shaped test.. 
Greatest length 2°2 mm. 
Lagoon, Funafuti. Sample 5 (24 fathoms). 
PLANORBULINA ACERVALIS, Brady, var. FIMBRIATA, Nov. 
(Pl. 20. fig. 4.) 
This example differs from the usual form in having the 
peripheral series of chambers separated and slightly flattened 
and squared at the extremities, producing a kind of fringe 
around the discoidal test. The central area is smoother than 
usual, but shows a certain amount of acervuline segmentation 
forming a superficial series of chamberlets. Diameter 1-4 mm. 
Lagoon, Funafuti. Sample 8 (26 fathoms). 
TruncatTuLina, d’Orbigny [1826]. 
TRUNCATULINA VARIABILIS, d Orbigny. 
Truncatulina variabilis, d’Orbigny, 1826, Ann. Sci. Nat. vol. vii. 
p- 279, No. 8. 
T. variabilis, VOrb., Egger, 1893, Abhandl. bayer. Ak. Wiss., math.- 
phys. Cl. ii. vol. xviii. p. 404, pl. xvi. figs. 57-59, 68, 64. 
Our specimen was found at some distance from the edge of 
the lagoon ; and the test being of a brown tint in the central 
portion appears to point to the conclusion that the organism was 
living 72 svtu. 
Lagoon, Funafuti. Sample 13 (26 fathoms). 
LINN. JOURN.—ZOOLOGY, VOL. XXVIII. 14 
