REPORT OR THE POLYZOA. 
165 
(6) Schizoporella tenuis, n. sp. (PL XX. fig. 10). 
Character. — Zoarium very delicate, expanded, unattached. Zooecia quadrangular, 
flattened or depressed in front, separated by thin raised septal ridges ; surface punctate. 
Mouth orbicular, with a wide shallow sinus in front, and on the sides a minute articular 
notch. Peristome thin, slightly raised in front. A minute round or oval, quite 
immersed avicularium at each intersection of the vertical and transverse interzooecial 
septa. Ooecia 0 ? 
Habitat. — Off Honoruru, Sandwich Islands, 20 to 40 fathoms. Simon’s Bay, Cape of 
Good Hope. 
At first sight bearing a general resemblance to many of the various Lepralioid forms, 
known as Lepralia [Schizoporella, Hincks) unicornis, cinsata, &c., the present species 
appears to be distinguished (1) by the perfectly flat or concave anterior surface of the cells ; 
(2) by the form of the mouth, which, instead of being semicircular with an emarginate 
lower lip, is more of the rounded clithridiate form, assigned by Prof. Smitt to his 
hippothoan species ; (3) by the circumstance that the lateral avicularia are placed quite in 
the angles formed by the transverse and longitudinal interzooecial septa, and that they 
are of much smaller size or more deeply immersed than in any of the forms placed 
under Lepralia unicornis or Lepralia cinsata, and have a semicircular, extremely 
minute mandible. With respect to these avicularia, it may be mentioned that they are 
fully formed, as it would seem, before the completion of the zooecia themselves, as may 
be seen at the growing edge, so that they might perhaps be described as belonging more 
to the general zoarial whole than to any particular zooecial compartment of it. 
(c) Adnate (lepralian). 
(7) Schizoporella elegcms, d’Orbigny (PI. XXII. fig. 8). 
1 Escharina elegans, d’Orb ; Voy. en Am6r. M4rid. 
1 Lepralia squamoiclea, Reuss, Oberoligacans, p. 19, pi. xv. fig. 5, and Bryoz. des Sept. p. 56, 
pi. vii. fig. 3; Manzoni, Castracaro, p. 29, pi. iv. fig. 46. 
Habitat. — Station 142, lat. 35° 4' S., long. 18°37'E., 150 fathoms, greensand (parasitic 
on an Adeonella). Station 148, lat. 46° 47' S., long. 51° 37' E., 210 to 500 fathoms, 
hard ground, gravel and shells. 
(8) Schizoporella marsupifera, n. sp. (PI. XXII. fig. 14). 
Character. — Zooecia irregularly hexagonal, slightly convex in front ; surface pearly, 
glistening, very finely granular ; disposed quincuncially and separated by raised septa. 
Orifice orbicular, emarginate, peristome thin, furnished very rarely with two long oral 
