Family Pygopidae.

Head short, with two or three pairs of narrow frontal shields, similar to, and behind the nasal shield, with two odd large vertebral shields; nostrils oblong, in the suture between the outer angle of the nasal shield and the front loreal shields; ears distinct, tympanum sunk; eyes surrounded with a series of scales; belly with two or four series of broad 6-sided ventral shields; tail with three series of broader shields, the central the broadest; limbs two, rudimentary, undivided, scaly, on the side of the vent; throat covered with small scales; lower labial plates large.

Pygopus. The scales of the back keeled, with a series of numerous praeanal pores; pupil round; the hinder limbs elongate.

Delma. The scales smooth; praeanal pores none; pupil elliptical, erect; hinder limbs short.

42. Soridia lineata, t. 3, f. 2.

M. Bibron in the work quoted observes: La Soridia lineata de M. Gray n'est pas different d'une espece de Scincoiden du Cap que nous avons vue dans la collection de M. Smith a Chatham et de laquelle nous avions pris une description qui s'est malheureusement egaree. Page 787. And again: Nous croyons que c'est par erreur que M. Gray a indique cette espece comme provenant de la Nouvelle Hollande, nous pensons plutot qu'elle est originaire du Cap, et la meme que celle dont nous parlions tout a l'heure ou le Scincoidien que d'accord avec le Dr. Smith nous nous proposions d'appeller Praepeditus lineatus. Page 788.

I do not know what Dr. Smith's animal may be, but the account of Praepeditus, given by M. Bibron, is only a translation of my description of Soridia! It is not probable that this animal should come both from Australia and the Cape. It is certainly from New Holland.

44. APRASIA.

The head small, shielded; muzzle rounded, rather produced, with two pairs of large frontal shields, covering the cheeks, a large six-sided elongated vertebral shield, and a pair of small superciliar shields; rostral and labial shields large, few; the nostrils small, in the sutures between the tip of the front upper labial, and the anterior frontal plates; eyes circular, edged with a series of small scales; pupil round; ears none; body and tail cylindrical, tapering, covered with hexangular scales, the ventral shields rather broader; limbs none.

By some mistake the slip containing the description of this genus in my synopsis of the slender-tongued Saurians got into the wrong place with the Tiliquae instead of being near Anguis.