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REPORT ON ZOOLOGY, MDCCCXLIV.

nulosum, ad peripheriam radiatum, radiis simplicibus, squa-mosis, in corporis discum subprolongatis; squamis radiorumlateralibus adpressis, in marginibus superioribus spiniferis;ossiculis ovarialibus binis in corporis lobos non productis.The single species belonging to it was found by Forbes onthe coast of Lycia . Three new species of the genusOphiura, Lam., Agass., found in the Egean Sea, he has de-scribed under the names of 0. textural a, albida andabyssicola. Besides these, Forbes has instituted the newOphiuridan genus, Ophiopsila, with the following characters:corpus orbiculare, coriaceum, lseve, ad peripheriam radiatum;radiis simplicibus squamosis, infra discum insertis, squamislateralibus subcarinatis, spiniferis, spinis simplicibus; ossi-culis ovarialibus parvis, oralibus ad latera nudis. The singlespecies Oph. aranea was placed in this genus. Another newOphiuridan genus has been named by Forbes Amphiura, underwhich he has described the three species Amph. neglecta,flm-ifera, and Chiajii, of which we extract the diagnosis ofAmph. jlorifera : disco squamis centralibus maximis rosulatis,scutellis ovatis disjunctis, squamis radiorum superioribusquadratis; inferioribus trilobatis; lateralibus 3-spiniferis;spinis brevibus simplicibus.

Muller and Troschel (Arcliiv, 1843, Bd. i, p. 113; and1844, Bd. i, p. 178) have also given new expositions respect-ing the geographical distribution of the Starfishes, and havefurnished therewith the description of several new species,viz.: Echinaster decanus, Oreaster valvulatus, Astrogoniumnobile, Goniodiscus singularis, seriatus, Astropecten triserialus ,Buschii, Vappa, Preissii, Ophiolepis chilensis; and further,Asteracanthion polyplax, Echinaster Sarsii, Ophidiaster pusil-lus, Astropecten echinulatus, Mulleri, squamatus, OphiolepisSchayeri, Opliiacantha groenlandica, and Ophiothrixparasita.They, have, moreover, remarked that the genus Pectinura,instituted by Forbes, is identical with their genus Ophiarachna,and his species Pect. vestita, probably with a young Oph.gorgonia. They have further shown, that the three speciesOphiura texturata, albida and abyssicola, Forbes, represent