12 God. 
CCELENTERATA. 
winian theory of coral reefs, maintains that the Dolomites afford an 
instance of fossil reefs that have been formed during subsidence. 
Wharton (93, 1), in referring to Yon Lendenf eld’s letter, asks where in 
modern seas there are to be found atolls rising 10,000 feet from the sea 
bottom ; and points out (2), in further reply to Yon Lendenfeld, that 
neither Keeling, Diego Garcia, nor Bermudas are certainly instances of 
this. He further asks if anyone can explain, on the subsidence theory, 
why atolls have usually such shallow lagoons. 
Wharton (93, 3) and Basset-Smith (3) agree that “ drowned atoll '* 
is not a good term to apply to the Macclesfield bank. 
Moore & Basset Smith (70) give an account, illustrated by some 
excellent charts and sections, of the Macclesfield and Tizard banks in 
the China Sea. 
Murray & Irvine (71) give an elaborate account of the carbonate of 
lime formations in modern seas. 
Heilprin (49) points out that coral reefs do occur in the western waters 
of the Gulf of Mexico. They belong to that group recognized by Darwin 
as being built upon shoals and beds of sediment. They give no evidence 
in favour of or against the subsidence theory. 
III.— REVIEWS AND NOTICES. 
Guppy (34) gives an account of Sluiter’s researches on the coral reefs of 
the Java seas. 
Yon Lendenfeld (57) reviews W alther’s book on the corals of the Sinai 
peninsula. 
Yon Lendenfeld (58, 59, 60), Ortmann (74, 75), and YanhOffen 
(87) review the recent literature on Ccelenterata. 
Yon Lendenfeld also gives special notices of (61) Miss Greenwood’s 
paper on the Digestion of Hydra , and (62) Hert wig’s Supplement to 
1 Challenger ’ Actiniae. 
Schimkewitsch (79) gives, in Russian, a critical review of recent papers 
on the development of the Hydrozoa. 
IV. — DISTRIBUTION. 
1. General. 
Haeckel (37) describes the Coelenterata of the Plankton. 
2. European Waters. 
Bourne describes a collection of Hydroids (10) from the neighbourhood 
of Plymouth, and (11) from the South-west coast of Ireland. 
Haddon (36) describes a collection of Actinice from the South-west coast 
of Ireland. 
Danielssen (19) describes a collection of Sea Anemones made in the 
North German ocean. 
