This is called the ungual crest and helps anchor the keratinous covering of the claw onto the ungual: it's present in some sloths and anteaters too, and outside of xenarthrans is seen in cats.    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

Lift part of the nail, that covering the abscess, but leave the part which protects the ungual phalanx and assists healing.    From Wordnik.com.  [Chapter 4] Reference

Australovenator wintonensis - Pes phalange and ungual measurements (mm).    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Moreover, of all the bones of the hand, the ungual phalanges are the first to ossify.    From Wordnik.com.  [II. Osteology. 6b. 3. The Phalanges of the Hand] Reference

Note also that the base of the ungual on digit III is surrounded by a sort of collar-like sheath.    From Wordnik.com.  [ScienceBlogs Channel : Life Science] Reference

Previous authors have mistakenly identified a pedal phalanx and ungual as part of digit I of the manus.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The smallest preserved manus ungual is laterally compressed, recurved and tapers to a sharp fine point.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Yunnanosaurus on the basis of its transversely narrow pubic apron and enlarged ungual of pedal digit II.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

A deep longitudinal ridge runs along the medial surface of the ungual distally from the proximal articular facet.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

The three phalanges were found in association with the right Mc II-V manus, whilst the ungual was found separate to these.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Elements from three digits are known from the manus of the holotype (AODF 604), each with a recurved and pointed terminal ungual.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

It is probable that in these cases the soft parts of the 3d phalanx, and especially the ungual matrix, had not been wholly destroyed.    From Wordnik.com.  [Anomalies and Curiosities of Medicine] Reference

The tarsal bones are short, and the digits have the usual number of phalanges, the ungual or nail-bearing ones being small and rounded.    From Wordnik.com.  [Natural History of the Mammalia of India and Ceylon] Reference

The medial face of the ungual is relatively flat in comparison to the lateral face which is rounded and possesses a deeper vascular groove.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Because the odour inhaled corresponded to other odours inhaled of other ungual fragments, picked and lacerated by Master Bloom, pupil of Mrs.    From Wordnik.com.  [Ulysses] Reference

Right manus reconstruction using left Mc I (reversed) and ungual in antero-external (C) and proximal (D) views. doi: 10.1371/journal. pone.0006190.g007.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

In the thumb, which has only two phalanges, the first phalanx articulates by its proximal extremity with the metacarpal bone and by its distal with the ungual phalanx.    From Wordnik.com.  [II. Osteology. 6b. 3. The Phalanges of the Hand] Reference

In the ungual phalanges the centers for the bodies appear at the distal extremities of the phalanges, instead of at the middle of the bodies, as in the other phalanges.    From Wordnik.com.  [II. Osteology. 6b. 3. The Phalanges of the Hand] Reference

The second phalanx of digit I consists of a robust, laterally compressed and strongly curved ungual oriented medially within the manus by the combined asymmetry of metacarpal I and of the first phalanx.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

—In the four fingers the phalanges of the first row articulate with those of the second row and with the metacarpals; the phalanges of the second row with those of the first and third rows, and the ungual phalanges with those of the second row.    From Wordnik.com.  [II. Osteology. 6b. 3. The Phalanges of the Hand] Reference

Opisthocoelicaudia, Alamosaurus, Saltasaurus and Nequenosaurus by retaining metacarpal phalangeal facets and phalanges, with Mc III. 1 heavily reduced; the presence of a manus ungual claw; flat distal humeral condyles and subequal distal femoral condyles.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

—In the second, third, fourth, and fifth toes the phalanges of the first row articulate behind with the metatarsal bones, and in front with the second phalanges, which in their turn articulate with the first and third: the ungual phalanges articulate with the second.    From Wordnik.com.  [II. Osteology. 6d. 3. The Phalanges of the Foot] Reference

The ungual phalanges are convex on their dorsal and flat on their volar surfaces; they are recognized by their small size, and by a roughened, elevated surface of a horseshoe form on the volar surface of the distal extremity of each which serves to support the sensitive pulp of the finger.    From Wordnik.com.  [II. Osteology. 6b. 3. The Phalanges of the Hand] Reference

Because the odour inhaled corresponded to other odours inhaled of other ungual fragments, picked and lacerated by Master Bloom, pupil of Mrs Ellis’s juvenile school, patiently each night in the act of brief genuflection and nocturnal prayer and ambitious meditation.    From Wordnik.com.  [Ulysses] Reference

Unlike other basal sauropodomorphs, in which the ungual of digit I is the largest (e.g.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Surgery for sub ungual melanoma.    From Wordnik.com.  [humor « WordPress.com Tag Feed] Reference

· Peri-ungual paronychia.    From Wordnik.com.  [Chapter 4] Reference

), the ungual of digit II is 1.4 times the length of ungual I.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Phalanges present on digits I-IV (phalangeal formula 2-1-1-1-0); spike-like ungual present on digit I.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

); and ungual on pedal digit I shorter than some pedal phalanges (Character 285: 1→0; convergently present in.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Sensible of a benignant persistent ache in his footsoles he extended his foot to one side and observed the creases, protuberances and salient points caused by foot pressure in the course of walking repeatedly in several different directions, then, inclined, he disnoded the laceknots, unhooked and loosened the laces, took off each of his two boots for the second time, detached the partially moistened right sock through the fore part of which the nail of his great toe had again effracted, raised his right foot and, having unhooked a purple elastic sock suspender, took off his right sock, placed his unclothed right foot on the margin of the seat of his chair, picked at and gently lacerated the protruding part of the great toenail, raised the part lacerated to his nostrils and inhaled the odour of the quick, then, with satisfaction, threw away the lacerated ungual fragment.    From Wordnik.com.  [Ulysses] Reference