31 
15-17 ; apex truncate, f 
, furnished with from 7-12 
= spurs. Li of 
teni-cals, 153, -130-(cell) 198 »; breadth of semi-cell, ‘68. 49- pay" 40 
. isthmus, 27-26-(cell) 22 ». (Plate VII 
eg’ haan Bay, J. Dallachy between the Norman and Gilbert 
Is nearly akin to D. Kayei, Arch. 
D.v 
om nm, Raifs, var. ornatum (a. var.). Variation 
gated prominences, we five-toothed ea apices of semi- 
h 
with pro 
10-43 5, “ge 169-2365 jy; breadth of semi-cell with processes 
gy She th of isthmus, 19°5-22 u. (Plate XVI 
Bets to ete the Norman and Gilbert Rivers, 7. Gulliver 
eke Sad co ewes er lateral protuberances this form presents a very 
D. gra 
1st, “oe eee: .), Wittr. Length of semi-cell with spurs, 153- 
- — th of spurs, 28-29 p. Reve XVI.) 
a. aes of the Gulf country, Dr. Thos. L. Baneroft. 
ah y the form observed deviates a little from the net form by the stouter 
D.el 
€gans (n. spec.). Large phat with 5 whorls of spurs; 
spurs of 
other aes ‘lees whorl LO in number and smaller; spurs of the 
in number and la npinene i wide apart, straight, or 
(the 
fet Per ones) slightly curved ; apex two-lobed, with double-spurred 
with spurs, fos obes, on each Lrpey: spurs. Length of semi- -cell 
isthm ae greatest breadth with spurs, 65 «; breadth of 
hoa 19-20 u. ‘(Plate XVI. 
: Between the Norman and Gilbert Rivers, 7. Gulliver. 
) Dau 
Stralianumi (n. spec.). Large Docidiwm, 5-7 times as long 
broad - 
12 in : ; pols furnished with 4 whorls of spurs, spurs of whorl 
oy rony, straight, or sli htly i i standing apart ; 
i ee re furnished. ih a spur sf peak ‘vith 
i lowest whorl ; 
gth 
—«GL58- :.. sa tok 169-182 4; breadth of "emiooll with “spurs, 
ast 
ab, : 
haeae ee Dr. Thos. L. Bancroft. 
I aaa la da ticre 
al ese et) Elan 
ec Heb. 7-139 »; breadth, 23- 
Johnstone River, Dr. — . Bancroft. 
ul fone (Breb.) Ralfs. Frond fusiform, both in front 
lourless cl ma projection | empty 
Diameter, 
ath, “182 dintastec, 
) 
- p (K. 
aa Cooke's British Lesa of 49. (Plate XI. 
Oggera District. 
Nordst. Length 
