628 
ZOOLOGICAL LITERATURE. 
tent, rather thin, somewhat membranous, with a rough surface. Cells pro- 
minent, arranged irregularly on all sides of the branchlets, but often absent 
on the median surfaces of the larger branches. Sp. P. laxa^ Verr. P. fruti- 
cosa, sp. n., Verr. ibid., Sooloo Sea. 
Titanideum, g. n. (Agassiz, MS.), Verrill, 1. c. p. 39. Closely allied to 
Briareuniy but has a more distinct axis, which is spongy and very spiculose, 
but firm and less porous than that of the latter. The cells are scattered on 
all sides and not prominent. Type T. siiberosum (Ellis & Sol. sp.). 
ParamuriceU) g. n., Kdlliker, 1. c. p. 136. Type Miiricca jdacomus (Ehr.). 
New sp. P. intermedia, Koll. 1. c. p. 136, distinguishable from P. placomus, 
var. a, only by the shape of the spicula ; P. spinosa, Koll. ibid. 
Echinogorgia, g. n., Kolliker, 1. c. p. 136. Type Gorgonia sasappo (Esper). 
Plexaurella, g. n., Kolliker, 1. c. p. 138. Type Gorgmiia dichotoma (Esper). 
Eryihropodmm, g. n., Kolliker, 1. c. p. 141. Type Xenia caryhceoi'um (Duch. 
& Mich.). 
Sclerogorgia, g. n., Kolliker, 1. c. p. 142 = Suherogorgia (Gray). No reason 
is assigned for the change of name. 
Neio species : — 
Muricea. Verrill (List of Polyps &c.) describes the following species : — 
M. laxa, p. 36, Florida; M. elegans (Ag. MS.), ibid.. Charleston; M. robusta, 
ibid., Acapulco ; M. hcbes, ibid., Acapulco ; 31. apj^ressa, p. 37, Panama. 
Muricea sinensis, Verrill, Proc. Essex Inst. v. p. 187, pi. 5. fig. 5, and 31. ? 
divaricata, Verr. 1. c. p. 188, pi. 5. fig. 6, Hong Kong. . 
3Iuricea acervata, Verrill, Proc. Bost. Soc. N. H. x. p. 327, and M. hispida, 
Verr. 1. c. p. 328, Panama. 
Prirnnoa compressa, Verrill, Proc. Essex Inst. p. 189, Aleutian Islands. 
Echinogorgia arhuscida, V errill, Proc. Bost. Soc. N. II. x. p. 329, Panama. 
Plexaura arbuscula, Philippi, 1. c. p. 118, P. rosea, Philippi, 1. c. p. 118, 
and P. platy dados, Philippi, 1. c. p. 119, from Chili. 
Lcptogorgia cuspidata, Verrill, Proc. Essex Inst. iv. p. 186, California. 
Lissogorgia Jlextwsa, Verrill, 1. c. p. 187, from Hong Kong. 
Pterogorgia hipinnata, Verrill, List &c. p. 31, Cumana, Venezuela, South 
America.. 
Leptogorgia rigida, Verrill, List &c. p. 32, Mexico, California; L. ampla, 
Verr. ibid., California ? 
Rhipidogorgia agassizii, Verrill, List &c. p. 32, and R. media, Verr. 1. c. 
p. 33, Acapulco. 
Melitodes virgata, Verrill, List &c. p. 38 = Melitcea ochracea (Dana, pars). 
Verrucella granifera, Kolliker, 1. c. p. 140, Coast of Africa ; V. ramosa, 
Koll. ibid.. Nine Island. 
Solandet'ia frauenfeldi, Kolliker, 1. c. p. 141. 
Mopsea bicolor, Kolliker, 1. c. p. 142. 
Mopsella japonica, Verrill, Proc. Essex Inst. v. p. 190, Japan. 
Juncclla Icevis, Verrill, Proc. Essex Inst. v. p. 189, Hong Kong ; J. extans, 
Verr. List of Polyps &c. p. 37, Azores. 
ZOANTHARIA. 
Graffe (Verb, zool.-bot. Ges. in Wien, xvi. p. 585) notices the principal 
