dextral individuals exhibit dominance of the right hand and eye.    From Wordnet, Princeton University. 

A dextral gastropod shell with the apex upward has its opening on the right when facing the observer.    From Wordnet, Princeton University. 

A dextral specimen of Albinaria cretensis Pulmonata: Clausiliidae.    From Wordnik.com.  [Archive 2006-05-01] Reference

In gastropod parlance the topology of its coil chirality is dextral.    From Wordnik.com.  [A shell of a different kind] Reference

The majority of snail shells are normally dextral the coiling of the shell is right-handed.    From Wordnik.com.  [Archive 2006-05-01] Reference

Check that picture: Ms Saites has an extraordinarily well-developed dextral sternocleido mastoideus.    From Wordnik.com.  ["When you walk into my house, you've just walked into a squirrel cage."] Reference

Ninety percent of people are right-handed dextral; in all but 1% of right-handers, the left hemisphere is dominant for language.    From Wordnik.com.  [The Neuropsychiatric Guide to Modern Everyday Psychiatry] Reference

Such circles always rotate in a clockwise direction, because the genital openings of dextral slugs are on the right sides of their heads.    From Wordnik.com.  [Archive 2008-02-01] Reference

The twisting of the head is apparently necessary, because these are both dextral individuals and so, their genital openings are on the right sides of their heads.    From Wordnik.com.  [Archive 2008-03-01] Reference

In terrestrial pulmonate gastropods the eggs are expelled thru the genital opening, which is located on the right side of the head if the individual is dextral, otherwise, on the left side.    From Wordnik.com.  [Archive 2006-05-01] Reference

According to the phylogeny of these snakes cited in the paper, the ancestral snakes had symmetric dentition, which suggests that the unequal teeth numbers on the snake's jaws is an adaptation to preying on dextral snails.    From Wordnik.com.  [Archive 2007-02-01] Reference

P. vulgata (dextral) 15 and B. glabrata (sinistral) 28.    From Wordnik.com.  [Pharyngula] Reference

The circuit used by the decorator of this box is dextral or sunwise.    From Wordnik.com.  [Archeological Expedition to Arizona in 1895 Seventeenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1895-1896, Government Printing Office, Washington, 1898, pages 519-744] Reference

Various lines of evidence indicate that the last common ancestor of all snails had a dextral body.    From Wordnik.com.  [Pharyngula] Reference

Her right arm rested upon the table, and her dextral fingers nervously manipulated a sealed letter.    From Wordnik.com.  [Options] Reference

It is hosted within a discrete NW trending dextral structure similar to the one controlling Vein 4.    From Wordnik.com.  [Marketwire - Breaking News Releases] Reference

In sinistral species, the third cleavage is in a counterclockwise direction, but is clockwise in dextral species.    From Wordnik.com.  [Pharyngula] Reference

The pond snail nearly always has a right handed (dextral) to its shell but sometimes it is left handed (sinistral).    From Wordnik.com.  [innovations-report] Reference

L. gigantea displays a dextral cleavage pattern and internal organ organization, and a relatively flat shell characteristic of limpets.    From Wordnik.com.  [Pharyngula] Reference

Flounder, the viscera are in the same position as in a dextral specimen: the liver is on the left side, the coils of the intestine on the right.    From Wordnik.com.  [Hormones and Heredity] Reference

Shell Eulimoid, polished, spire elevated, sutures obsolete, apex dextral, non-umbilicated columella twisted and produced into a short, lip-like canal.    From Wordnik.com.  [Transactions of the American Philosophical Society] Reference

No doubt the wag who said the intruder should be divided into three parts because he was "all gall" had a prevision of my theory of the hepatic cause of dextral.    From Wordnik.com.  [With Sabre and Scalpel. The Autobiography of a Soldier and Surgeon] Reference

On this last hypothesis the mutation here considered might be a heterozygous specimen, with the dextral condition dominant in the head and the sinistral in the body.    From Wordnik.com.  [Hormones and Heredity] Reference

Occasionally the dextral circuit is followed in cases in which it is evidently less convenient than the sinistral would be, as in dealing cards in all ordinary games.    From Wordnik.com.  [Current Superstitions Collected from the Oral Tradition of English Speaking Folk] Reference

From the world of the marine biologist comes dextral, referring to gastropod shells that have the spire or whorl ascending from left to right as viewed by the observer.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol IX No 3] Reference

The four dragon-flies on the rim of this object are placed in such a way as to represent insects flying about the box in a dextral circuit, or with the heads turned to the right.    From Wordnik.com.  [Archeological Expedition to Arizona in 1895 Seventeenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1895-1896, Government Printing Office, Washington, 1898, pages 519-744] Reference

I gather, to the right and left side of the creature, not the observer, as is the case with dextral and sinistral, says the OED, quoting from the 1883 edition of Encyclopaedia Britannica.    From Wordnik.com.  [VERBATIM: The Language Quarterly Vol IX No 3] Reference

Morgan and his colleagues have called crossing over in the segregation of heterozygous chromosomes, so that a part corresponding to a sinistral body is united with a part corresponding to a dextral head.    From Wordnik.com.  [Hormones and Heredity] Reference

There was the usual insistence and preference for the dextral member, and heredity asserted itself, for as far back as we could trace his ancestry on both sides there was not an exception to dextral preference.    From Wordnik.com.  [With Sabre and Scalpel. The Autobiography of a Soldier and Surgeon] Reference

Thus in a reversed or sinistral Flounder, which is normally dextral, the left side which is uppermost is still the left side, but it has colour and two eyes, whereas in the normal specimen the right side has these characters and not the left.    From Wordnik.com.  [Hormones and Heredity] Reference

(As wont) approving sneeze from dextral sped.    From Wordnik.com.  [The Carmina of Caius Valerius Catullus] Reference

(left) and dextral Fusinus salisbury (right). b, Sinistral (left) and dextral (right) shells of Amphidromus perversus, a species with chiral dimorphism. c, Early cleavage in dextral and sinistral species (based on ref.    From Wordnik.com.  [Pharyngula] Reference