198 TUBULIPORID&. 
P. purpurascens, Hutton, Trans. N.Z. Inst., ix., p. 361. 
Irregularly branched; branches spreading, slender; cells numerous, 
granular ; mouths projecting, recurved, slightly contracted ; purplish. 
P. porcellanica, Mutton, C.M.M., ~. 102. Branches slender, 
spreading, smooth ; cells rather distant, wholly immersed, orifice sub- 
orbicular, neither raised or margined ;_ branches cylindrical, sometimes 
anastomosing. 
In fresh specimens the surface is coarsely pitted and the orifice 
slightly raised. 
Lyall Bay. Australia. 
Genus, CINCTIPORA—Hutton. 
Zoarium erect, ramose ; branches dichotomous or irregularly divided, 
free, cylindrical ; cells immersed ; mouths attached to the stem and to 
one another, forming circles round it; cell walls thin, punctured in- 
ternally. 
New Zealand only. 
C. elegans, Hutton, CM.M., p. 103: Cells arranged quin- 
cuncially, minutely granular, the septum between two cells prolonged 
upwards into a narrow rib running up the centre of the tube in the row 
above ;_ white. 
FAMILY—TUBULIPORID. 
Zoarium depressed, or massive, adnate, orbiculated, or lobed. 
Genus, TUBULIPORA—Lamark. 
Zoarium adnate or decumbent; entire or divided into lobes or 
branches ; cells partially free and ascending, radiating from an eccentric 
point. 
T. glomerata, Hutton, CALM, p. 103.  Encrusting, irregular, 
wart-shaped, thick ; tubes crowded, irregularly placed. 
Perhaps identical with 7. fungia Couch., from Europe. 
Genus, ALECTO—Lamouroux. 
Zoarium adnate, creeping, irregularly branched ; cells in single series 
or disposed in more or less irregular transverse rows. 
A. racemosa, Hutton, C.:M.M., p. 103. Large, branched ; cells 
in clusters of from two to ten together, irregularly placed. 
A. disposita, Hutton, C.M.M., p 103. Slightly branched, irre- 
gular ; cells prominent, arranged in parallel rows ; margin defined. 
