52 
The material consisted of fine siftings from dredgings, and 
having but few molluscan fragments and stones the larger 
adherent forms are poorly represented, but 470 species and 
varieties have been identified, including two new genera, and 
28 new species and varieties. The general facies is strikingly 
similar to that characteristic of Australian, Torres Straits, and 
Malay gatherings. The problem of distribution thus raised is 
obscure, the intervening ocean being abyssal, while the species 
now recorded are all shallow-water types. Many of the special- 
ized forms common to these widely separated areas do not 
apparently occur in similar dredgings from intervening coasts 
such as the Red and Arabian Seas. No doubt the Equatorial 
Current, which traverses the Indian Ocean from E. to W. 
and impinges on the African coast in our area, is primarily 
responsible for this phenomenon. 
Among the striking forms described and exhibited were 
Ammodiscus charoides (Jones & Parker), now recorded for the 
first time as a tropical species; Carterina spiculotesta (Carter), 
exhibiting a hitherto unrecorded arrangement of the spicules ; 
Pavonina flabelliformis WOrbigny, originally discovered by 
d’Orbigny in sand from Madagascar in 1826 and lost sight of for 
fifty years; Chrysalidina dimorpha Brady, a rare and beautiful 
Textularian ; Discorbina dimidiata Parker & Jones, and Dis- 
corbina polystomelloides Parker & Jones; Cymbalopora bulloides 
1’ Orbigny, the dual nature of the terminal chamber, being divided 
into a “balloon” and a contained ‘ float” chamber, was des- 
cribed; also the species Cymbalopora millettii Heron-Allen & 
Earland, first recorded from the Malay Archipelago by Mr. F. W. 
Millett. A new record was established for Haddonia torresiensis 
Chapman, hitherto only found in the Torres Straits and the 
Tropical Pacific. 
This paper will be published in the ‘ Transactions.’ 
Mr. T. H. Wirners, F.G.S., described a new Cirripede based 
on a number of disconnected valves from the Chalk of Surrey 
and a complete specimen from the Chalk of Hertfordshire. 
Except for three valves referred to a new species of Scalpellum 
(sens lato), the whole of the material belongs to a remarkable 
new asymmetrical Cirripede which differs from Verrueca in the 
more primitive structure of the valves, in the presence of two 
lower lateral valves on the rostro-carinal side, and in the absence 
of interlocking ribs. This species undoubtedly represents the 
ancestral type from which has arisen the recent group of asym- 
metrival sessile Cirripedes forming the family Verrucide, and in 
its structure clearly shows its origin from the symmetrical 
pedunculate Cirripedes of the family Pollicipedide. It presents 
further evidence that the sessile condition was arrived at inde- 
pendently on several different lines of descent during the evolution 
of the Cirripedia. 
