298 F. CHAPMAN. 
Form B.—This form is rare and of large dimensions, one 
specimen when complete measuring 23 mm. in diameter. 
The enormous development of the form A and its extra- 
ordinarily large megasphere make it necessary to refer 
this form, the most abundant in the Papuan limestone, to a 
new variety of L. Verbeeki, viz., var. papuaensis. 
Distribution.—L.V erbeeki, which in all previously figured 
specimens are of the megalospheric form, excepting perhaps 
the occurrence in the Philippines recorded by W. D. Smith, 
occurs in Sumatra, Borneo, Christmas Island, Formosa, the 
Loo Choo Islands, and probably the Philippines. 
The present Papuan occurrence appears to be the first 
undoubted record of the species in the microspheric stage. 
(Form B.) 
ECHINODERMATA. 
Hchinoid spines and plates. 
The radioles of several types, probably belonging to more 
than one species of sea-urchin are present in this limestone. 
Remains of the plates of the test in addition show this group 
to be well represented in the sub-littoral fauna at the time. 
None of the remains are determinable, although in all 
probability both diadematoids and spatangoids are present. 
POLYZOA. 
Fragmental remains of indeterminate remains of polyzoa 
are occasionally seen in this limestone. 
PISCES. 
Tooth of fish, allied to ? Chrysophrys, Plate VII, fig. 4. 
An oblique section of a fish tooth occurs, amongst other 
obscure fish remains, in one of the limestone sections. On 
comparing it with a section of the tooth of the living 
Chrysophrys (Sea Bream), the structure is seen to be 
almost identical, and different from the tooth structure of 
the Labridce (Wrasses), both of which groups, however, are 
characteristic feeders on shell-fish and similar food. 
