The Cambridge natural history . the righteye.—N. Atlantic. Fam. 6. Octopodidae.—Head very large, arms elongated,similar, more or less webbed, acetabula usually in two rows, sessile ;mantle supported by fleshy bands, no cephalic aquiferous pores. In Octojjus proper the web is usually confined to the lowerpart of the arms; Fischer separates off as Fterocto;pus a form inwhich it reaches almost to their extremity. The third rightarm (Fig. 52, p. 140) is hectocotylised, the modified extremitybeing, according to Hoyle, sometimes minute, sometimes spoon-shaped, with a tendency to transverse ridges, r
The Cambridge natural history . the righteye.—N. Atlantic. Fam. 6. Octopodidae.—Head very large, arms elongated,similar, more or less webbed, acetabula usually in two rows, sessile ;mantle supported by fleshy bands, no cephalic aquiferous pores. In Octojjus proper the web is usually confined to the lowerpart of the arms; Fischer separates off as Fterocto;pus a form inwhich it reaches almost to their extremity. The third rightarm (Fig. 52, p. 140) is hectocotylised, the modified extremitybeing, according to Hoyle, sometimes minute, sometimes spoon-shaped, with a tendency to transverse ridges, rarely slender and 1 Eep. Brit. Assoc. 1844, Transactions p. 74 ; F. Z. S. 1839, p. 35. DECAPODA 5 very long. The relative length of the pairs of arms varies indifferent species. Two cartilaginons stylets, imbedded in thedorsal mantle, are said by Owen to represent the shell. Other genera ; Finnoctopus, body fnrnished with broad lateralwings which meet at the posterior end; Cistopits, a large webprolonged along the sides of.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1895
