Report on the Cephalopods of the Northeastern Coast of America (1882) - Softcover

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 edition. Excerpt: ...cartilage on the neck, opposite the pen. Arms long, not webbed. Suckers in two rows, largest on the middle of the lateral and dorsal arms; horny rings of suckers smooth on most of the suckers, simply dentate on the distal ones. Eyes large, with rounded openings and thin, free lids. No nuchal frills or crests. Buccal membrane simple, sack-like, with seven connective bridles. Internal anatomy of the female similar to that of Ommastrephes. Oviducts and nidamental glands symmetrically developed on the two sides. Oviducts opening in front of the bases of the gills, the openings simple, long, narrow, oblique. Two long, ligulate nidamental glands, with acute anterior ends, lie side by side and a little apart, on the middle of the visceral mass, behind and over the heart '; each of these consists of two halves, folded together, and covered on the inner surface with fine transverse laminae; they open along the outer edge. This genus may, perhaps, belong to the Ohiroteuthidw. Body rather short, tapering backward, subacute posteriorly; front edge of mantle advancing somewhat in the middle and forming an obtuse angle; considerably emarginate beneath. Oaudal fin small, short, thin, each half nearly semicircular, attached subdorsally, posterior end emarginate and free from the tip of the body, but not extending much beyond it, Head large, flattened above. Eyes very large, with simple, thin, free, circular lids, without any sinus. Openings of the ears behind the eyes, minute, with a small, erect, clavate, fleshy process of the skin. Arms long, tapering, equal to the length of head and body combined; the lateral pairs are equal; the dorsal and ventral nearly equal, somewhat shorter than laterals; suckers deeper than broad, well rounded, laterally...