"^'iSi!^,i:t" ^MMm in the Uni.

HYDROZOA ACTINOZOA. 491
of a many-folded oral lobe here and there come into contact with each
other.
Cyanea capiUata, Esch., Rhizostoma cuvieri, Lmk., Chrysaor a hyoscella,
Esch., Aurelia aurita, Lmk., Aurelia cruciata, L., recorded by Metzger from
the East-Frisian coast. JB. Ges. Hann. 1869-70.
CTENOPHORA.
Cydippe pileus, Esch., C. pomiformis, Patterson, Beroe ovatus, Baster, recorded
by Metzger (1. c.) from the East-Frisiau coast.
ACTINOZOA.
Geographical Distribution,
VERRILL (Tr. Conn. Ac. i. p. 503) gives a table of the geographical distribution
of the Polyps of the West Coast of America, arranged according to the
same provinces or topographical regions as those already Used by the same
author in the case of the Echinodermata. 1. The Arctic province has yielded
4 species, also found on the Atlantic coasts of America and Europe. 2.
The Sitchian [!] prov. 2 sp. 3. The Oregonian prov. 7 sp., of which 3 are peculiar
to it. 4. The Californian prov. 8 sp., of which 5 are peculiar to it, the
other 3 occurring also in the Oregonian. 5. The Panamian [!] prov., the richest
of all, has yielded 116 sp., of which 104 are peculiar to it: this region is subdivisible
into 3 subprovinces,—A. Mexican, containing 42 sp., of which 20 are
peculiar, 16 in the Panamian (proper), and 6 are common to all three subdivisions
; B. Panamian (proper), containing 80 sp., of which 51 are peculiar,
16 occur also in the Mexican subprovince, and 7 in the Ecuadorian; C.
Equadorian, comprising 17 sp., of which 4 are peculiar, 7 are common to it
with the Panaman, and 6 are found in all three. 6. The Peruvian prov. has
vielded 15 sp., all peculiar to it but one (Bunodes papillosa). 7. The Chilian
prov. 11 sp., all peculiar to it but the above-cited B. papillosa, common to it
With the Peruvian. 8, The Fuegian, 6 sp., all peculiar to the province. The
Panaman province is very rich in Madreporaria and Alcyoniaria. There are
no Madreporaria recorded from the Arctic or Sitkhan provinces; but 2
(Balanophyllia elegans, Verr., and Allopora venusta, Yen:) occur in the Oregonian
; one Astrangia is recorded from the Straits of Magellan.
DUCHASSAING (I. c, p. 8) asserts that the types of Actinozoa dominant in
the Caribbean Sea are Zoantharia malacodermata, Astraida, and especially
Gorgonida, but that the fauna of this sea is distinguished by a characteristic
and almost complete absence of Stylinacea and Fungida.
Only Alcyonium digitatum, L., Pennatulaphosphorea, h., Actinoloba dianthus,
Sagartia viduata, Miill, and Tealia crassicornis, Miill., occur in Metzger's list of
Actinozoa from the East-Frisian coast. JB. Ges. Hann. 1869-70.
ALCYONIARIA.
Alcyoniidcs.
Gymnosarca, g. n., Kent (Q. J. Micr, Sc. x. p. 397). Corallum firm,
smooth, attached by its base and partially incrusting, throwing off free cylindrical
stolons which occasionally branch and coalesce. Polype-cells elevated,
cylindrical. Animals semiretractile. G. bathybius, Cezimbra, Portugal.
2 K 2