422 
MR. W. K. PARKER AND PROFESSOR T. R. JONES ON SOME 
D . rimosa ; but it is larger, more symmetrical, and extremely rough ; and the 
chinks between the chambers are partly bridged over, so as to form a rough 
canal-system, as in some of the Polystomellce. 
Fig. 9, a , b , c. Discorbina dimidiata, Parker and Jones. Large and profusely abundant 
among the surf-washed Sponges on the Melbourne coast. This is merely D. 
vesicularis modified by being sharp-edged, and flat, and even scooped on the 
under face (opposite to that which is flat in Truncatulina). The astral flaps 
or valves are strongly marked over the umbilicus. See page 385. 
Fig. 10, a , b, c. Discorbina biconcava, Parker and Jones. Shore-sand, Melbourne. A 
very small isomorph of Planulina Ariminensis. It is a hyaline, thick, lim- 
bate, square-edged, biconcave Piscorbina, most concave on the umbilical face 
(as usual with the genus). Its astral flaps are feeble. See page 385. 
Fig. 11, a, b, c. Lot alia annectens, Parker and Jones. Hong Kong (anchor-mud) and 
Fiji (coral-reef). A well developed Conus-shaped Botalia, which has, on its 
under or umbilical surface, partially formed secondary chambers, owing to 
angular processes of the septa nipping the umbilical lobes. It is thus a pas- 
sage-form between B. Schrceteriana, P. & J., and B. ( Asterigerina ) lobata, 
D’Orb. See page 387. 
Fig. 12, a, b, c. Lotalia craticulata, Parker and Jones. Fiji. This Polystomelloid Bo- 
talia is noticed by Dr. Carpenter, Introd. Study Foram. p. 213. See page 387. 
Fig. 13, a, b , c. Rotalia dentata, Parker and Jones. Bombay Harbour (anchor-mud). 
A well-grown, biconvex Botalia , with numerous subquadrate chambers, 
thickened and raised septal edges, rowelled margin, and massive umbilicus. 
See page 387. 
Appendix I. — Additional North Atlantic Foraminifera. 
The Rev. J. S. Tute, of Markington, has shown us a set of carefully executed drawings 
of minute Foraminifera from 67 fathoms, Atlantic Soundings, belonging to the Rev. 
W. Fowler, of Cleckheaton. These comprise 
Globigerina bulloides. 
Spirillina vivipara. 
Planorbulina lobatula. 
Ungeriana. 
Textularia pygmsea. 
Miliola (young). 
Also 
Pteropoda ( CuvieriaX and InmacinaX). 
Among the above, Spirillina vivipara is additional to our list of Foraminifera from 
the Atlantic Soundings. See also page 368. 
With reference to very minute Foraminifera, such as are here referred to, it may be 
