. A manual of zoology. PHYLUM MOLLUSCA 3°9 and two auricles, on the other hand, bearing tentacles ; An ink gland is present. In the latter, the forefoot has the character of lobes the funnel does not form a complete. Fig the 194—Oral surface of a male (A) and female (B) Nautilus pompilius in an expanded state, § natural size, linear, a, shell; b, external annular lobe carry- ing 19 tentacles on each side, and anteriorly enlarged to form the hood; c, right and left inner lobes, each carrying 12 tentacles in the female, and divided in th< male into two parts; d, posterior inner lobe; e, oral
. A manual of zoology. PHYLUM MOLLUSCA 3°9 and two auricles, on the other hand, bearing tentacles ; An ink gland is present. In the latter, the forefoot has the character of lobes the funnel does not form a complete. Fig the 194—Oral surface of a male (A) and female (B) Nautilus pompilius in an expanded state, § natural size, linear, a, shell; b, external annular lobe carry- ing 19 tentacles on each side, and anteriorly enlarged to form the hood; c, right and left inner lobes, each carrying 12 tentacles in the female, and divided in th< male into two parts; d, posterior inner lobe; e, oral cone; f, tentacles of th' outer annular lobe projecting from their sheaths; g, two anterior tentacles of thL lobe belonging to the hood; /, superior, k, inferior, ophthalmic tentacle; /, eye; M, lamellated organ on the posterior inner lobe of the female; m, paired lami- nated organ on each side of the posterior inner lobe of the female: o, funnel; p, spadix; q, antispadix. (After Bourne, from Sedgwick.) tube. There is an external, chambered, spiral shell. There are four ctenidia, four nephridia, and four auricles. The ink gland is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1900
