176 PROCEEDINGS OF THE ACADEMY OF 



Descriptions of two new species of IX01IC UNI0N1S and one 

 MONOCONDYLffiA. 



BY ISAAC LEA. 



Unio Paramattensis. Testa .crebre et leviter sulcata, elliptica, subinflata> 

 valde inaequilaterali, postice obtuse angulata, antice rotundata; valvulis cras- 

 siusculis, antice paulisper crassioribus ; natibus prominulis, ad apices radiis 

 undulatis ; epidermide tenebroso-ruscii, nigricante, eradiata; dentibus cardi- 

 nalibus parvis, valde compressis, obliquis, valvulae dextrae duplicibus; late- 

 ralibus praelongis, lamellatis subrectisque ; margarita alba et valde iridescente. 



Hab. Paramatta River, New Soutb Wales, Smithsonian Institution. 



Unio Pazii. Testa laevi, obliquii, antice inflata, valde inaequilaterali, postice 

 acuto-angulata et attenuate, antice rotundata ; valvulis crassiusculis, postice 

 paulisper crassioribus; natibus tumidis, subterminalibus ; epidermide olivacea, 

 obsolete radiata et tiansverse late vittata; dentibus cardinalibus longis, 

 lamellatis, valde obliquis corrugatisque ; lateralibus praelongis, obliquis, 

 lamellatis corrugatisque; margarita vel alba vel CEerulea et valde iridescente. 



Hah. China. Sig. Patricio Maria Paz. 



Monocondlcea Wheatleyi. Testa, laevi, oblonga, subcompressa, valde in- 

 aequilaterali, antice oblique rotundata, postice truncata, ; valvulis subcrassis, 

 antice paulisper crassioribus ; natibus parvis, acuminatis, ad apices minutis- 

 sime undulatis ; epidermide lutea, nitida, eradiata ; dentibus cardinalibu3 

 parvis, erectis, in utioque valvulo uno-tuberculatis ; margarita alba, et valde 

 iridescente. 



Hal. River Tigris, Assyria, Rev; Mr. Beadle, by C. M. Wheatley. 



Contributions to NEOTROPICAL SAUROLOGY. 

 BY E. D. COPE. 



Phyllodactylus spatulatus. 



Muzzle elongate, rounded, depressed, extending anterior to the orbit once 

 and one-tbird times the diameter of the latter. Frontal and nasal regions 

 closely squamulose 'tuberculous, each tubercle as large as those that are scat- 

 tered upon the occiput. Superior labials six, the last minute ; inferior labials 

 five. Symphyseal elongate campanuliform in outline, succeeded by three or 

 four transverse series of mental plates. The anterior is composed of three 

 (median smallest), which are much longer than broad ; the posterior are 

 hexagonal. About twenty-five rows of abdominal plates, and twenty rows 

 of elongate trihedral dorsal tubercles. Extremities coarsely tuberculous. 

 Length of head to angle of mandible 8 lin. ; from this point to vent, 1 in. 9 

 lin. ; of hinder extremity, 1 in. ; tail ? Abo^e pale yellowish ; a dark brown 

 line from orbit to shoulder ; dark brown longitudinal lines, which inosculate 

 on the nape and anterior dorsal region ; on the posterior dorsal and sacral 

 they form cross-bands. Extremities banded. Beneath immaculate. 



Habitat. Barbadoes. Prof. Theodore Gill coll. 



Anolis ( Acantholis) argillaceus. 



Size small, form stout. Head large, the muzzle short.. Canthus rostralis 

 straight, sharp ; facial ruga? very obtuse, uniting a little anterior to the mid- 

 dle of the muzzle, and forming a slightly pronounced median keel. Tail one 

 and one-half times the length of the body, slightly compressed and trenchant, 

 though not serrate above ; its scales keeled. No dorsal dermal fold. A slight 

 prebrachial fold. Nares vertical. Orbit large ; tympanic orifice moderate ; 

 dorsal and lateral scales minute, equal, except an occasional one a little 



[April, 



