SOWEEBT : NEW SPECIES OF MAEINE MOLLTJSCA. 201 



Cyclinella. The cardinal dentition is, however, somewhat different, 

 the form of the shell is more quadrate, and the concentric ridges are 

 much stronger and more regular. 



MODIOLA GRANOLIEATA, n.Sp, 



Testa elongato-arcuata, crassiuscula, fusca, oblique obtuse angulata, 

 concentrice plicato-striata, utrinque dense grano-lirata, liris posticis 

 pernumerosis, anticis paucis ; umbones obtusi, depressiusculi, approxi- 

 mati ; margo dorsalis posticus elongato-arcuatus, anticus brevissimus, 

 abrupte truncatus ; margo ventralis incurvus. Long. 25, lat. 11, 

 crass. 11 mm. 



Hah. — Bay of Manila. 



This shell is somewhat allied to M. striatula, Hanley, but of 

 a shorter stouter build, and its sculpture is very much stronger. The 

 posterior lirge, continuing quite to or even beyond the middle of the 

 valve, are crisply granulated, and a few lirse of the same character are 

 found at the anterior extremity, beneath the umbones, the intervening 

 space being transverselj^ plicated and striated. 



