107 
T. serpens is a branched species and is generally para- 
•itical on other corallines, while this is an encrusting species 
*0d never branched. In the former the tubes are short and 
ju contact, in the latter long and separated from each other, 
oence there can be no doubt of their being specifically 
distinct. 
T UBULIPORA. ( deflexa , R. Q C ) Polypidom erect, 
cylindrical, with waved tubes projecting from all parts. 
1*1., xix., fig. 5. 
I lab. On shells from deep water, common. Polperro, 
"levagissey bay, and off the Deadman point. 
This small species varies in height from a qnarter to half- 
?b-inch. It is calcareous, white, columnar, and unbranched ; 
|U upper termination is very frequently enlarged into a glo- 
bular head. The tubes observe no regularity in their ar- 
* 8 *>gement, but arise without order from all parts of the 
fulypidom and project considerably in a bent or tortuous 
banner. They are shorter below than above, most probably 
fr °m the older portions being broken olf, and the apertures 
jj r e even and unarmed. The base is slightly spreading and 
bfntly adherent. Though this species is so common as to 
16 found at all depths, yet I cannot find it referred to by 
of the authorities to which I have access. 
^tTBULIPORA. Cfungia, R, Q. C.) Pedunculated; the 
Upper portion expanded into a flat round surface; tubes 
Projecting from the upper part of the circumference ; 
c entre nearly plain. PI. xix., fig. 4. 
Tnbipora pennieillata, Turton’s Lin., vol. 4, p. 615. 
f tiab. On shells and stones from deep water, common ; 
r °ui the Eddystone Lighthouse to the Deadman point. 
This pretty species is calcareous, and varies lo a quarter 
° f an inch in height. The upper portion is expanded into 
a flat head, having" on its superior surface, one, two, or three 
of projecting tubes round the circumference ; the centre 
18 either plain or marked with a few irregular cells. The 
' e 'ls are distant from each other, with slightly oblique, un- 
ited apertures, and lean towards the circumference of the 
a i surface. Sometimes they are almost even with the 
bfface, and at others project so considerably as to hide all 
. ® surface of the disc except the central plain spot. 1 he 
ub es are rather small in calibre. This species is very cora- 
'°U in deep water, and though sometimes found on shells, 
j^°*t commonly prefers thin slate or a red compound mica 
oltin g stone. 
