REPORT ON THE POLYZOA. 
1*27 
(2) Reteporella myriozoides, n. sp. (PL XXIV. fig. 2). 
Character. — Zoarium irregularly branched, for the most part in one plane ; branches 
mostly opposite and forked at the ends (fig. 2a). Zooecia (young) ovate, deeply 
immersed ; surface closely pitted or punctate, puncta elongated. Orifice (primary), 
orbicular, with a wide sublateral fissure, and usually very deeply immersed. Secondary 
orifice orbicular, with a very thick annular peristome, usually mucronate, rather to one 
side in front ; sometimes a small avicularium on the inner base of the mucro. Anterior 
avicularia rare, on very slight eminences on the front of a zooecium ; mandible obtuse, 
pointing downwards (fig. 2c). Dorsal surface pitted, without avicularia. Ooecia (?) 
Habitat. — Station 148, lat. 46° 47'-53' S., long. 51° 37'-52' E., 210 to 500 
fathoms, hard ground, gravel, shells. 
This extremely aberrant form is very doubtfully referred to the Reteporidse. In some 
respects it appears to resemble a Myriozoum , but the peculiar fissured orifice has induced 
me to place it with or near the former group. 
Geographical Range of Retepora. 
Two species occurred in the North Atlantic region — 
Retepora imperati. 
atlanticci. 
Five in the South Atlantic region — 
Retepora tessellata. 
var. ccespitosa. 
var. pubens. 
,, lata. 
,, mcigellensis. 
Four in the South Indian region — 
Retepora gigantea. 
,, cavernosa. 
Reteporella jlabellata. 
„ myriozoides. 
