762 
ZOOLOGICAL LITEllATUllE. 
Ophiopeltis securigera (D. & K.), Ophiocoma nigra (0. F. Miill), Ophiopholis 
aculeata (O. F. Miill.), Ophiura lacertosa (Pen.), O. sarsii (Liit.), O. alhida 
(Forbes), O. ajjfinis (Liit.), O. squamosa (Liit.). 
Martens describes tbe following new species in Arch. f. Naturg. 1865 : — 
Linckia (Scgtastet') semiseriata, p. 355, South Chinese Sea ; Guniaster (Stel- 
laster) ticbet'culosus, p. 368, hab. unknown ; G. (Stellaster) miilleri, p. 359, 
Japan j a new subgenus, Ogmaster (p. 369), distinguished by having the five 
innermost ventral plates deeply sulcated on their sides — Ogmaster capella 
(Miill. & Trosch. sp.) j Astropecten velitaris, p. 360, South China Sea. 
Astropecten coelacanthus (Monatsber. Ak. Wiss. Berlin, 1. c. p. 68), Costa Bica. 
Astropecten. LUtken (1. c. p. 125) reunites the two latter groups proposed 
by Muller & Troschel for this genus (System der Asteriden, p. 72 et seq.). 
Astropecten articulatus (Say) and A. aster (Filippi) are described in detail, 
and the original description of A.armatus is amended. LUtken, 1. c. pp. 127-132. 
Luidia belloncej sp. n., LUtken, 1. c. p. 133, South-west America. 
Ar chaster nicobariciis (Behn) is said not to difter from A. ty picas (M. & T.). 
LUtken, 1. c. p. 135. 
Stellaster sulcatus (Mob.) is referred to Archaster. LUtken, 1. c. p. 136. 
Archaster. Two fragments of a new species living at great depths in the 
Greenland Seas were taken from the stomach of a Shark. LUtken, 1. c. 138. 
Asteriscus ciliatus (Lorenz) is only a young form of A. verruculatus {Asterina 
gibbosa, Fret.). LUtken, 1. c. p. 138. 
Goniaster. LUtken (/. c. p. 143) proposes to unite the genera Goniodiscus, 
Astrogonium, and Stellaster^ as already suggested by Forbes, under the old 
genus Goniaster. 
Goniaster articulatus (L.) is redescribed by LUtken from the original speci- 
men in the Tessinian Museum. L. c. p. 147. 
Astrogonium souleyeti (Duj. &IIup^) is the same species as A. longimamm 
(Mob.). LUtken, 1. c. p. 144. 
Goniodiscus acutus and G. placentceformis (Heller) appear to be doubtful 
species. LUtken, 1. c. p. 145. 
Oreaster. LUtken thinks that his Goniodiscus armatus is referable to this 
genus, and that it may probably be the same as Gray’s Pentaceros {NidoreUui) 
armatus. L. c. p. 148. 
O. 7iodosus (Gray) is redescribed by LUtken, 1. c. p. 162 j O. forciptdosusj 
sp. n., LUtken, /. c. p. 154 j O. reinhardtif sp. n., LUtken, 1. c. p. 159. 
O. linckii (Blv.)=0. inwicatus (Gray), fr-oni Madagascar, is described in 
full. LUtken, 1. c. p. 156. 
O. clavatus (M. & Tr.) is the Asterias doi’sata (L.) from the Mus. Tessin. 
(LUtken, 1. c. p. 161) j O. lapidarius (Grube) and O. tuberosus (Behn) are 
probably but synonyms of O.gigas (L.), 1. c. p. 161. 
Oreaster armatus (Gray) described by Martens, Monatsb. Ak. Wiss. Berlin, 
1865, p. 65. 
Ophidiaster (Gray), Scy taster (M. & Tr.), and Lmckia (Gray) might per- 
haps be united into one genus, but if kept separate may be distinguished by 
the following among other characters : — Ophidiaster has two series of ambu- 
lacral papillai in the form of spines, of which the external are larger though 
fewer than the iiiternal. Scytastcr has two or more series of ambulacral 
