Zoological Society. 515 



Total length, 9 inches ; bill, 1 ; wing, 5^ ; tail, 2 ; tarsi, 2, 

 Hah. The southern countries of Mexico. 



This is a most robust species, and distinguished from its congeners 

 by its larger bill, shorter tail, and large and powerful tarsi. 



" Descriptions of new species of Delphinula, a genus of pectini- 

 branchiate MoUusks, collected for the most part by H. Cuming, Esq. 

 in the Philippine Islands," by Mr. Lovell Reeve. 



1. Delphinula Scalarioides. Delph. testd globulosd, albd; an- 

 fractihus rotundis, varicosis, varicibus elevatis, solidis, annulifor- 



mibus ; interstitiis transverse striatis, striis elevatis ; intus marga- 

 ritaced. 

 Conch. Icon. Delphinula, pi. 3. fig. 11, a and b. 

 Hob, Island of Mindanao, Philippines (under stones at low water) , 

 Cuming. 



The whorls of this species, which is not punctured like the Delphi- 

 nula Peronii, are encircled with solid rings about seven to the whorl, 

 after the manner of a Scalaria ; the shell might indeed be mistaken 

 for one, were it not for its solidity and pearly interior. 



2. Delphinula varicosa. Delph. testd angulato-globosd, albd, 

 foraminihus sparsim puncturatd ; anfractibus superne angulatis, 

 fortiter varicosis, varicibus multicarinatis et elevato- striatis ; intus 



margaritaced. 



Conch. Icon. Delphinula, pi. 3. fig. 12, a and b. 



Hab. Island of Corregidor, Philippines (found in sandy mud) ; Cu- 

 ming. 



This species differs from the Delphinula Peronii in having the spire 

 more prominent, and varices entirely across the whorls ; they are also 

 more strongly and closely set ; the shell is moreover much more spa- 

 ringly punctured. 



3. Delphinula depressa. Delph. testd piano -rotundatd ; spird 

 valde depressd.foraminibus puncturatd ; albd; anfractibus superne 

 angulatis, fortiter varicosis, varicibus ad angulum acuminata- 

 elevatis ; intus margaritaced. 



Conch. Icon. Delphinula, pi. 3. fig. 14, a and b. 



Hab. Island of Camiguing, Philippines (under stones at low 

 water); Cuming. 



No one can fail to recognize this species, by its depressed spire 

 and by the pointed elevation of the varices on the angle of the whorls. 



4. Delphinula discoidea. Delph. testd discoided; spird plano- 

 depressd, liris longitudinalibus et transversis, interstitiis subtiliter 

 striatis, eximie clathratd; peripherid carinis duabus clathratis 

 prominentibus ornatd. 



Conch. Icon. Delphinula, pi. 4. fig. 15, « and b. 



Hab. Cagayan, island of Mindanao, Philippines (found in coarse 

 sand at the depth of ten fathoms) ; Cuming. 



The latticed sculpture of this shell very much resembles the cha- 

 racter of a figure in plate 31 of the ' Magasin de Zoologie' for 1834, 

 under the appellation of Delphinula adamantina, Duclos. It differs. 



