A history of British star-fishes, and other animals of the class Echinodermata . ecies. What I take to be the nervous system will be founddescribed under the account of Ophiocoma bellis. Thereis no appearance of ocular spots in the animals of thisorder. The Ophiurido are very generally distributed throughthe seas of our earth, both of its northern and southernhemispheres. The species do not present such wideranges as the true Starfishes. They are more affectedby climatal causes, which seem to influence their size,they being largest in the tropical seas. In our own seasthey are very abundant, a
A history of British star-fishes, and other animals of the class Echinodermata . ecies. What I take to be the nervous system will be founddescribed under the account of Ophiocoma bellis. Thereis no appearance of ocular spots in the animals of thisorder. The Ophiurido are very generally distributed throughthe seas of our earth, both of its northern and southernhemispheres. The species do not present such wideranges as the true Starfishes. They are more affectedby climatal causes, which seem to influence their size,they being largest in the tropical seas. In our own seasthey are very abundant, and are among the most curiousand beautiful game pursued by the dredger. Among therelics of the Radiata of the primaeval seas we find severalspecies of Ophinrida\ No extreme change has taken place 21 ill the forms of the family since the extinction of thespecies found fossil. The British Ophiuridse belong to two families, that ofOphiura and that of Euryales. The animals of the formerfamily have simple arms ; those of the latter, arms rami-fying into many 22 OIIIIURIDJE. OPHIVRM.
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