388 MR. F. CHAPMAN ON THE 
At one side of this specimen a full-grown megalospheric test of 
Cycloclypeus Carpenteri has been partially encrusted and over- 
grown by the Polytrema. 
Pava I., 240 fathoms (1898). 
Specimen A 51. 
A deep-sea coral with numerous adherent tests of Carpenteria 
balaniformis, and a doubtful specimen of C. rhaphidodendron. 
Funamanu (Beacon Id.), 25 fathoms. 
An aleyonarian stem encrusted in places with a pale green 
Polytrema planum and a species of bryozoa, and bearing on its 
surface numerous specimens of Carpenteria monticularis, C. utri- 
cularis, and Polytrema miniaceum. 
Funamanu (Beacon Id.), 45 fathoms (coll. A). 
A somewhat thin and flexuose piece of reef-rock measuring 
5 em.x3 cm., encrusted with alge, foraminifera, hydrozoa, and 
bryozoa. 
The foraminifera are Polytrema planum and P. miniaceum, 
both represented only by young growths. 
Funamanu (Beacon Id.), 50 fathoms (1897). 
Svecimen C 1. 
Woral-rock encrusted with Lithothamnion Philippii var. funa- 
futiensis, Carpenteria monticularis, Polytrema planum, P. mini- 
acewm and var. alba, Serpule, and bryozoa. 
Specimen © 2. 
A thin fragment of coral-rock with adherent organisms— 
Lithothamnion, foraminifera, Serpule, and bryozoa. The forami- 
nifera are Sagenina frondescens, Bdelloidina aggregata, Carpen- 
teria monticularis, C. utricularis, and Polytrema miniaceum. 
(2) Another specimen of P. planum growing on a base of hard 
? coral-rock, measuring 3 cm.x2 cm. The Polytrema has grown 
irregularly, forming thin layers. On the rougher side of this 
specimen Carpenteria monticularis occurs, and here and there 
are little patches of the pink Polytrema miniacewm. 
