94 Mr. W. D. Lang—Revision of the 
2. A. wrrostrata, sp. n. 
Type-specimen. British Museum, D. 28994; quadratus- 
zone, pillula-subzone ; N.E. of Worthing, Sussex. 
II. Carypiopora, gen. nov. 
Genotype. C. nucula. 
Tabular Diagnoses of Species. 
A, Avicularia fewer, smaller, and less pointed ; 
less intercecial secondary tissue. 
1. More eoste,,about 20 92.0. os oe teen 1. C. nucella. 
2: Kewer cost, about t4 6 fists ces setae ae 2. C. coryli. 
B, Avicularia more, larger and more pointed ; 
more intercecial secondary tissue; costz 
DUAN eer e vais othe le oar ntet scare etetematttat = tale) halos .. & Ci nucula, 
1. C. nucella, sp. n. 
Type-specimen. British Museum, D. 28995 ; quadratus- 
zone, depressus-subzone; E. of Brighton, Sussex, : 
2. C. coryli, sp. n. 
Type-specimen. British Museum, D. 28998; quadratus- 
zone, pillula-subzone; North Lancing, Sussex. 
3. C. nucula, sp. n. 
Type-specimen. British Museum, D. 28993 ; Marsupites- 
zone ; Brighton, Sussex. 
III. Casranopora, gen. nov. 
Genotype. C. castanea. 
Tabular Diagnoses of Species. 
A. Large, proximally directed avicularia abundant. 1. C. retrorsa. 
B. Large, proximally directed avicularia absent or 
rare. 
I, Length not more than ‘75 mm. and cecia very 
BLOUbE . <:.o.et sayin bist has ments 2. C. dibleyt. 
II. Length about 1 mm.; cecia longer rather than 
broad. 
a. Coste more than 25, 
1. Avicularia more proximally placed with 
regard to the aperture; incrusting .... 38. C. ornata. 
2. Avicularia distally and laterally placed 
with regard to the aperture; erect, 
ler BT) As t60' oars a /arey ese ee ee oes 4, C. magnifica. 
