106 Moll . 
MOLLUSCOIDEA. 
laria, several species of Membranipora, Steganoporella y and Lunulites , and 
the new family Onychocellidce. Bull. Soc. Zool. vi. [1881] pp. 271-285. 
Jullien, op. cit. vii. [1882] pp. 504 & 526, subdivides the Chilostomata 
monodermata as follows : — 
1. Subovicellata : ovicells closed by the operculum. Fam. Aeteidce , 
Microporellidce , Porinidce , and ^4 scosidce. 
2. Superovicellata : ovicells placed above the operculum, and fur- 
nished with a peculiar orifice. Fam. Cellular iidte, Bicellariidce t 
Lageniporidce, Schizoporellidce , Myriozoidce , and Eschar idee. 
C. M. Maplestone, having observed many Australian Polyzoa in the 
living state, observes that the number of the tentacles varies from 
eight to twenty-four, being often, but not always, a multiple of four, and 
notes the colour of 41 species, pink, orange, and red prevailing among 
them ; Catenicella hastata is spotted with purple or dark-green pigment 
cells : Tr. R. Soc. Yict. xviii. [1882] pp. 48-51. 
Polyzoa collected soon after being washed up on the beach proved to 
\be still alive ; id. 1. c. pp. 48-51. 
Symbiosis of small Actiniae and a species of Cellepora , the former living 
in excavations of the substance of the latter ; W. A. Haswell, P. Linn. 
Soc. N. S. W. vii. p. 608. 
The microscopical Algce known as “yellow cells ’’ found in Zoobotryon 
pellucidum (Ehreub.) ; K. Brandt, MT. z. Stat. Neap. iv. p. 222. 
Geographical Distribution. 
Arctic Seas. Preliminary account of Polyzoa observed during Norden- 
skiold’s Expedition along the Northern coast of Asia, by A. Stuxberg, 
in Vega-Ex peditionens Yetenskapliga Iakttagelser, i. [1882] pp. 696-715, 
734, 737, 739, 740, & 787-792. 
Belgian Coast. 3 species of Polyzoa mentioned by P. Pelseneer, 
Ann. Soc. mal. Belg. xvii. p. 41. 
Atlantic. J. Jullien enumerates 59 species of Bryozoa dredged 
during the expedition of the French ship ‘ Travailleur,’ in the Bay of 
Biscay and adjoining parts of the Atlantic in 1881 ; many new species 
are described and figured : Bull. Soc. Zool. vii. [1882] pp. 497-529, pis. 
xiii.-xvii. 
Marion Islands. 5 new species of Polyzoa from the expedition of 
H.M.S. ‘ Challenger,’ described by J. R. Goldstein, Tr. R. Soc. Yict. 
xviii. [1882] pp. 42-46, pis. i. & ii. 
Queen Charlotte Islands. 23 species of Polyzoa , including many new, 
enumerated by T. Hincks, Ann. N. H. (5) xi. pp. 442-451, pis. xvii. & 
xviii. 
Australia and Neu ) Zealand. New genera and species of Polyzoa ; 
Hincks, Ann. N. H. (5) xi. pp. 193-202, pis. vi. & vii. Victoria: many 
new or little-known species described and figured by P. H. MacGilli- 
vray, Tr. R. Soc. Viet, xviii. & xix. [the species of Polyzoa attributed in 
Zool. Rec. xix. Moll. pp. 112 & 114, to MacCoy, belongs to this author, 
as is stated in a letter by him. — Rec.]. 
