b. Supraiiaml plate none. Body fusiform. Loiver eyelid 

 with a transparent disk. 



MocoA, Gray. 

 Lygosoma, part, Dum. et Bib. 



Head subquadrangular. Rostral erect, triangular, con- 

 vex. Nasal lateral, nearly contiguous, supranasal none, 

 frontoparietal separate or united into one. Palate tooth- 

 less, nicked behind. Ears oblong, slightly denticulated in 

 front; tympanum deep. Lower eyelid with a central 

 transparent disk. Chin with several pairs of large shields. 

 Body fusiform. Scales smooth, with 3 or 4 black streaks. 

 Limbs 4, strong. Toes 5-5, com|)ressed, unequal. Tail 

 round, tapering, unarmed. Central preanal scales rather 

 larger than the others. 



* Fronto-parietal plate single, lozenge-shaped. 



t Scales of the back moderate, in 6 series. 



Guichenot's Moco. Mocoa Guichenoti. 

 Plate 7, fig. 3. 



Mocoa Guiclienoti, Cat. Kept. B. M. 80. 

 Lygosoma Guichenoti, Dum. et Bib. E. G. v. 713. Gray, 

 Grey's Trav. Austr. ii. 425. 



Bronze green, with a blackish streak on each side ; 

 scales of the neck moderate ; frontoparietal ])late single, 

 larger, elongate, lozenge-sha])ed, frontal triangular, equal- 

 sided ; nasal plate small, quite lateral, internasal broad, 

 truncated in front; ear large, nearly circular, open, simple- 

 edged in front ; two of the four scales of the last preanal 

 series larger than the rest. 

 Inhab. King George's Sound. 



There is, in the British Museum, a specimen of this spe- 

 cies which was sent from Paris by M. Bibron, under the 

 name of Scincus Duperreyii, the name which he has ap- 

 plied to the next species in his work. The same kind of 

 error is observable in the other specimen sent at the same 

 time. I should not have observed this mistake, if it did 

 not explain some of the en'ors into which he has accused 

 me of falling, such as considering his Scincus Vosmaeri the 

 same as my Hagria, (see Erp. Gen. v. 762) ; my genus 

 and species being absolutely described from his specimen 

 so named, lent to mo for the purpose by M. Bibron ! 



The Nr:w Holland Moco. Mocoa trilincata. 

 Plate 7, fig. 4. 



Mocoa trilincata, Gray, Cat. Repi. B. M. 81. 



Tiliqua trilincata. Gray, Ann. N. H. ii. 29L 



Lygosoma Duperreyii, Dum. et Bib. E. G. v. 715. 



Olive, black-spotted, with a pale streak on each side, 

 sides blackish, white-dotted; ears moderate, oval, front 

 edge covered with 2 scales ; nasal lateral, nearly contigu- 

 ous, frontojiarietal plate single, lozenge-shaped, frontal 

 rhombic, short and blunt before, long and acute behind. 



Var. 1. Olive, scales of the back and sides black-edged, 

 nut spotted. 



Var. 2. Olive, black and white spotted, sides blackish, 

 white-dotted. 



Inhab. S. Australia. 



tt Scales of the back small, in 8 or 10 series. 

 The Black-chinned Moco. Mocoa melanopogon. 

 Plate 7, fig. 5. 

 Mocoa melanopogon, Gray, Cat. Rept. B. M. SO. 

 Olive, varied with black, and with 2 or 3 white streaks 

 in some of the scales ; side of the head and neck black, 

 with a white streak under the eyes from the back edge of 

 the ear; chin and throat black, with a central white spot 

 on each scale, beneath silvery ; nasal lateral, frontonasal 

 contiguous ; scales of the back rather small, in 8 or 10 se- 

 ries, of the sides smaller ; disk of lower eyelid very large. 

 Inhab. Port Essington. 



ttt Scales of the back very small, in numerous series. 

 The Eyed Moco. Mocoa ocellata. 

 Plate 7, fig. 1. 

 Mocoa ocellata, Gray, Cat. Rept. B. M. 81. 

 Olive, varied with numerous sometimes confluent black 

 dots, forming rings on the sides, beneath whitish ; scales 

 very small, in many series ; nasal rhombic, lateral ; disk 

 of lower eyelid large. 

 Inliab. Australia. 



** Interparietal plates 2, separate. 

 t Ear ovate, partly covered with the scales above. 

 Entrecasteaux's Moco. Mocoa Entrecasteauxii. 

 Plate 7, fig. 2. 

 Mocoa Entrecasteaxii, Gray, Cat. B. M. 82. 

 Lygosoma Entrecasteauxii, Dum. et Bib. E. G. v. 717. 

 Olive, back with a broad blackish central streak, some- 

 times with series of spots on the side, sides blackish, with 

 2 narrow white streaks ; nasal plates small, nearly conti- 

 guous ; temple covered with large scales; transparent disk 

 of the lower eyelid very large ; ears moderately open, near- 

 ly equal ; frontoparietal plate double, frontonasal nearly 

 contiguous. 



Inhab. Australia. 



The MoKo MoKo. Mocoa Zelandica. 



Plate 7, fig. 3. ] 



]\Iocoa Zelandica, Grai/, Cat. Rept. B. M. 82. 

 Tiliqua Zelandica, Gray, Dieff. N. Z. ii. 202. 

 Tiliqua Moko, Gray, MSS. Dum. et Bib. E. G. v. 718. 

 Pale brown, bronzed, with 2 narrow black-edged bright 

 streaks on each side, the lower one continued down the 

 front of the legs ; sides blackish ; the ironlonasal nearly 

 contiguous, frontoparietal separate, similar to the parietal, 

 nasal nearly contiguous ; ears moderate, nearly circular, 

 sinqile-edged ; preanal scales nearly equal, larger ; ])alpe- 

 bral disk moderate. 



Inhab. Cook's Straits, New Zealand, Bay of Islands. 



