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SUBORDER 2

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Originally appearing in Volume V05, Page 702 of the 1911 Encyclopedia Britannica.

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SUBORDER 2 . OCTOPODA.—Only four pairs of arms, all similar and longer than the See also:

BODY

body. Body See also:

SHORT, FRANCIS JOB (1857– )

short and rounded aborally. the Cretaceous rocks of See also:

Lebanon. (After H. See also:

Woodward.) Suckers sessile. See also:

Heart not contained in coelom. No nidamentary glands. Tribe 1. Leioglossa.—No radula. Arms See also:

UNITED

united by a See also:

COMPLETE

complete membrane. Fins on sides of body.

Fam. Cirrhoteuthidae. Tentacular filaments on either See also:

side of the suckers. Cirrhoteuthis, pallial See also:

sac prominent, fins large, pelagic. Opisthoteuthis, body flattened, with small fins, deep-See also:

sea. Vampyroteuthis, four fins. Palaeocto pus, fossil, Cretaceous. Tribe 2. Trachyglossa.—Radula See also:

PRESENT

present. No fins. Fam. 1.

Amphitretidae. Arms united by membrane; See also:

FUNNEL (through an O. Fr. founil, found in Breton, from Lat. infundibulum, that through which anything is poured, from fundere, to pour)

funnel attached to See also:

MANTLE

mantle, dividing the pallial See also:

APERTURE (from Lat. aperire, to open)

aperture into two. Amphitretus, pelagic. Fam. 2. Alloposidae. All arms united by membrane; mantle joined to See also:

head by dorsal See also:

BAND

band and two lateral commissures. Alloposus, pelagic. Fam. 3. Octopodidae. Arms See also:

long and equal, without membrane; hectocotylus not autotomous.

No cephalic aquiferous pores. See also:

OCTOPUS (Gr. brcreo, eight and gobs, foot)

Octopus, two rows of suckers on each See also:

ARM (a common Teutonic word; the Indo-European root is ar, to join or fit; cf. the Lat. armus, shoulder, and the plural word arma, weapons, Gr. apphs, joint, and the reduplicated apapilKSV, to join)

arm, See also:

BRITISH

British. Eledone, single See also:

ROW, JOHN (c. 1525—1580)

row of suckers on each arm. Scaeurgus. Pinnoctopus. Cistopus. Japetella. Fam. 4. Philonexidae. Hectocotylus autotomous; arms unequal in See also:

SIZE

size; aquiferous pores on head and funnel. Tremoctopus, two dorsal pairs of arms united by membrane.

Ocytho, without interbrachial membrane. Fam. 5. Argonautidae. Hectocotylus autotomous; no inter- . brachial membrane; extremities of dorsal arms in See also:

FEMALE

female See also:

EXPANDED

expanded and secreting a See also:

shell; See also:

MALES

males very small, without shell. See also:

ARGONAUTS ('Apyovavrat, the sailors of the "Argo ")

Argonauts.

End of Article: SUBORDER 2

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