770 ZOOLOGICAL LITERATURE. 
McIntosh, W. C. Note on two New Species of the Genus 
Edwardsia. Ibid. p. 394. 
M ULLE II, F. IJ cber die Ilandldaschen der Ilydroidcpiallen. Arch, 
fur mikr. Anat. 1865, pp. 143-147, pi. 7. fig. 4. 
Norman, A. M. On Cyanea imporcata, an undescribed Me- 
dusa taken off the Northumberland Coast. Nat. Hist. 
Trans. Northumb. and Hurliam, vol. i. part i. p. 58, pi. xi. 
. On New Species of Actinozoa. Ann. & Mag. Nat. 
Hist. 1864, January, p. 84, pi. x. 
. On Merona, an undescribed Genus of British Hydrozoa. 
Ibid. 1865, April, p. 261. 
. On undescribed British Hydrozoa. Ibid. 18Q4, January, 
pp. 82-84, pis. ix. & X. 
Verrill, a. E. Classification of Polyps. (Extract con- 
densed from a Synopsis of the Polypi of the North Pacific 
Exploring Expedition under Captains Binggold and Bodgers, 
U.S.N.). Proc. Essex Instit. vol. iv. p. 145 ; Ann. & Mag. 
Nat. Hist. 1865, September, p. 191. 
Wright, E. Perceval. On a Nevv Genus of Alcyonidae. 
Quart. Journ. of Micr. Scien. 1865, July {orig. com.), 
p. 214, with a plate. [Hartea.l 
’ Hydroida. 
Prof. Allman has published a Report on the state of our 
]jresent knowledge of the reproduction of this group (Trans. 
Brit. Assoc, for 1863 [1864], pp. 351-426) : — 
He bi-ings together all tlie known facts regarding tlieir development. It 
is an able resume of wliat has been already done in this group of animals, 
and contains, moreover, many new facts and various original views. The 
paper is also illustrated with numerous original ligures. 
The present state of our knowledge of the Hydroida rendering the old 
terminology inadequate for the requirements of science, the author has found 
it necessary to subject this department of the subject to a complete revision. 
He continues to employ most of the terms aheady introduced by Huxley 
and himself, but is also obliged to make use of several new ones. 
For the whole assemblage of nutritive zooids which go to make up the 
entire complex hydroid colony, he uses the term ‘‘ trophosome while for 
the whole assemblage of zooids whose proper function is more or less con- 
nected with true generation, the term gonosome ” is employed. 
He describes, as elements of the trophosome, the peculiar zooids 
which occur in the Plumularidic, and had been named nematophores by 
Busk; and he shows that these bodies consist of a true protoplasm, which 
has the power of emitting pseialapodki in the manner of a Rhizopod. 
The “ gonophore ” is the ultimate generative zooid, and, though in every 
case reducible to the type of the so-called Gynmophthulniic Medusa, pro- 
