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Published via the yankee Geophysical Union as a part of the Antarctic study Series.
This is the 7th quantity within the Antarctic learn sequence that bargains with marine biology. It includes 4 papers. 3 describe organisms from the bathypelagic quarter and from shallower depths, and the fourth offers with ciliated protozoans from shallow marine and freshwater habitats.
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Extra resources for Biology of the Antarctic Seas VII
Copyright American Geophysical Union Antarctic Research Series Biology of the Antarctic Seas VII MCSWEENY: CRANCHI ID SQUID GALlTEUTHIS GLACIALlS (CHUN) Vol. 27 31 Fig. 1 2. Galiteuthis glacialis. Developmental series of tentacular clubs. (a ) Right, E L T 683, 26-mm M L . ( b) Right, SC 24-62, 38mm ML. ( el Left, ELT 935, 55-mm ML. (d) Right, ELT 949, 62-mm ML. (e) Left, ELT 949, 84-mm ML. (f ) Left, ELT 1023, 107-mm ML. (g) Left, ELT 1634, 130-mm ML. (h) Left, ELT 992, 235-mm ML. Copyright American Geophysical Union Antarctic Research Series 32 Biology of the Antarctic Seas VII Vol.
They are covered with a thin chitinous layer which bears small teeth that are directed posteriorly on the inner sur face at the tips. The esophagus originates as a con tinuation of the groove formed by the palatine lobes at the posterior termination of the pharynx. Bidder [ 1966] listed five glands opening into the buccal cavity : the single median submandibular, or sublingual , gland ; the paired anterior salivary glands ; and the paired posterior salivary glands. The submandibular gland in this species is a small, com pact gland occupying the anterior ventral portion of the odontophore below the salivary papilla.
Near the dorsal end of the liver the cephalic artery is reduced to a slender vessel of constant diameter. Within a short distance it gives off a branch which passes to the dorsal man tle wall with the mesenteries attaching the liver. H ere it bifurcates as the posterior mantle arteries, sending a branch posteriorly on either side of the mantle nerve trunks j ust under the gladius. At inter vals these send branches laterally into the mantle. Directly dorsal to the liver, the cephalic artery gives off the hepatic artery, which passes straight down ward into that organ.
Biology of the Antarctic Seas VII