. The Cephalopoda of the Hawaiian Islands. Cephalopoda; Mollusks. CEPHALOPODA OF THE HAWAIIAN ISLANDS. 313. Fig are in two rows, at the point where the 4-rowed condition commences the ventral series contains two (sometimes apparently only one) modified papillae, usually differentiated from the ordinary sucker pedicels, with which they are undoubtedly homologus, by their more slender shape and oblique position. Distal to this point occur about 10 quartets of small globular suckers similar to those of the female, except that those of the dorsal row are a little the largest. Beyond its basal thir
. The Cephalopoda of the Hawaiian Islands. Cephalopoda; Mollusks. CEPHALOPODA OF THE HAWAIIAN ISLANDS. 313. Fig are in two rows, at the point where the 4-rowed condition commences the ventral series contains two (sometimes apparently only one) modified papillae, usually differentiated from the ordinary sucker pedicels, with which they are undoubtedly homologus, by their more slender shape and oblique position. Distal to this point occur about 10 quartets of small globular suckers similar to those of the female, except that those of the dorsal row are a little the largest. Beyond its basal third the arm becomes much swollen, while the suckers of the two ventral rows suddenly give place to a compactly crowded, rather irregular series of massive transversely elongate and compressed papillae, bearing a mouth-like aperture in place of a true sucker at their inner apex, and continuing in constantly diminishing size to the tip. The suckers of the two dorsal rows continue normally for two or three pairs farther than the ventral, when they too undergo modification, appearing as a crowded alternating double series of swollen tubercles, their pedicels not transversely compressed nor so closely palisaded as those of the ventral papillae. As in the case of the latter, the suckers themselves are reduced to mere lip-like slits at the apices. In all cases these apertures appear to be guarded by a highly modified very minutely toothed homy ring. Except in minute details, the whole structure is thus seen to offer a close parallel to that which has been described for E. morsel. The right dorsal arm is more slender than the left and approaches more closely than any of the other arms to the condition observed in the female; all the suckers crowded, minute, but those of the median rows rather the more so; the suckers of the ventral row in their turn slightly smaller than those of the dorsal series. On the arms of the second pair the suckersof the outer rows are larger than those of the i
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Keywords: ., bookcentury1900, bookdecade1910, bookpublish, booksubjectmollusks
