4 Owl. 
C(ELENTERATA. 
times distant, sometimes very close ; the septa are plain ; and there is no 
endotheca.” Comprising the following two genera : — 
PolycyathuS) g. n., Duncan. “ Anepitheca covering the costae; pali are 
present ; the columella is usually deeply seated.” P. atlanticus, sp. n. 
Duncan, 1. c. p. 433, pi. xxxviii. figs. 14-16 (St. Helena). 
Agelacyathus, g. n., Duncan. “ No epitheca nor endotheca ; the costae 
well developed, especially near the calices ; septa more or less exsert ; 
pali and columella present.” A. helence, sp. n., Duncan, 1. c. p. 434, pi. 
pi. xxxix. figs. 4-6 (St. Helena) ; A. persicus, sp. n;, id. ibid. figs. 1-3 
(Persian Gulf). 
Javania, g. n., Duncan. “ Corallum simple, tall, compressed at the calyx, 
adherent by a broad base ; epitheca complete, dense interiorly, pellicular 
superiorly ; large septa very exsert, primary and secondary costae pro- 
jecting ; no columella; calicular fossa very deep.” J. insignis, sp. n., 
Duncan, 1. c. p. 435, pi. xxxix. figs. 11-13 (Japanese Seas, 34^^ 13' N. lat., 
136^ 13" E. long., 48 fathoms). 
Brachytrochus, g. n., Duncan. “ Corallum short, free or iucrusting (on 
Annelid shells), calix circular, deep centrally ; no columella ; septa 
exsert, papillose ; costae well developed, merging into a granular struc- 
ture on the rounded centre of the base.” B. simplex^ sp. n., Duncan, l.c. 
p. 436, pi. xxxix. figs. 7-10 (Caspar Straits, 12 fathoms). 
Ceratotrochus diadema, sp. n., Moseley (7, p. 553), 37^ 26' N. lat., 25° 14' 
W. long., 1000 fathoms ; off Pernambuco, 675 fathoms ; platypus, sp. n., 
id. 1. c., p. 554, off New South Wales, 410 fathoms ; discoides, sp. n., id. 
ibid., off Pernambuco, 675 fathoms ; nobilis, sp. n., id. ibid,, off Fayal, 
1000 fathoms. 
Flabellum alabastrum, sp. n., id. 1. c. p. 555 (off the Azores, 1000 
fathoms) ; apertum, sp. n., id. 1. c. p. 556, off Portugal, 900 fathoms, and 
off Prince Edward’s Island, 310 fathoms ; angulare, sp. n., id. ibid, (off 
Nova Scotia, 1250 fathoms). 
(Oculinidje) Oculina cubaensis, sp. n., Duncan, 1. c. p. 436, pi. xl. 
figs. 1 & 2 (Caribbean Sea, incrusting dead Polyzoa and Serpulce). 
Sclerohelia hirtella, Pall. (St. Helena), redescribed, id. 1. c. p. 437, and 
figured (pi. xli. figs. 3 & 4) ; additions to the description of Cyathohelia 
axillaris (Ell., Sol.), id. 1. c. p. 438. 
{Astbmibje) Antiilia lonsdaleia, Dune., var., id. 1. c. p. 438, pi. xli. 
figs. 1 & 2 (Japanese Seas) (hitherto known only as miocene from S. 
Domingo). 
Convexastrma (?) peruviana, Pourtales (1), p. 290, figs. 4 & 5 (semi- 
fossil, Peru). 
Isophyllia duplicata,\d. 1. c. p. 289, figs. 1-3, (semi-fossil, Peru). 
( Cladocobace:^]). Dendrocora, g. n., Duncan. “ Corallum bushy, branches 
short, frequently forming groups in one plane ; wall thick, except near 
the calices : costae distinct, thicker than the septa ; columella lax and tra- 
becular ; pali placed before the tertiary septa in perfect systems ; fissi- 
parity common in the terminal calices, presenting short broken series ; no 
epitheca ; endotheca tolerably abundant.’’ Z>. fissipara, sp. n., Duncan, 1. c. 
p. 439, pi. xl. figs. 5-7 (off Bonito, W. Africa, ^ fathoms). 
(^ASTBANQIACE^) Astrangia minuta, sp. n., Duncan, 1. c. p. 439, pi. xl. 
