नरम अनियंगेड समुद्री कीड़े जिनमें थ्रेडली प्रोबोस्किस और खिंचाव और अनुबंध की क्षमता होती है

nemertines's Usage Examples:

It is a curious feature in Nemertines that the alimentary canal seldom contains traces of food and yet most of these worms are voracious.

The anterior opening, the mouth, is situated ventrally, close to the tip of the head and in front of the brain in the Metanemertini, somewhat more backward and behind the brain in the other Nemertines.

With respect to the sense organs of the Nemertines, we find that eyes are of rather constant occurrence, although many Heteronemertines living in the mud appear to be blind.

At the same time it renders more intelligible the extreme sensitiveness of the bodywall of the Nemertines, a local and instantaneous irritation often resulting in spasmodic rupture of the animal at the point touched.

The nervous system of Nemertines presents several interesting peculiarities.

The omnipresence of this connective tissue tends to exclude the formation of any perivisceral body cavity in Nemertines.

It is worthy of notice that in those Nemertines which make a very free use of their proboscis, and in which it is seen to be continually protruded and retracted, the walls of the proboscidian sheath are enormously muscular.

In Nemertines the everted proboscis is retracted in the same way as the tip of a glove finger would be if it were pulled backwards by a thread situated in the axis and attached to the tip. The comparison may be carried still further.

Burger classifies Nemertines into four orders: I.

Nemertines live in the sea, some being common amongst the corals and algae, others hiding in the muddy or sandy bottom, and secreting gelatinous tubes which ensheath the body along its whole length.

nemertines's Meaning':

soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract

Synonyms:

proboscis worm, phylum Nemertea, worm, ribbon worm, nemertean, Nemertina, Nemertea, phylum Nemertina,

Antonyms:

stand still,