214 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



4. Odostomia (Pyrgulina) robusta. PI. XXII, Fig. 19. 



Testa oblongo-ovata, alba, solida ; spira breviter turrita, leviter 

 convexa ; anfractus 6, primi 2 rotundati, laeves, ca5teri convexi, 

 longitudinaliter costati, costis nunierosis glabratis crassiusculis ; sutura 

 breviter canaliculata ; anfractus ultimus f longitudinis testae aequans, 

 vix inflatus ; apertura subovata, antice rotundata, postice acuta ; 

 labrum crassiusculum ; columella leviter callosa, ad basim sinis- 

 trorsum arcuata, plica unica acutiuscula in medio instructa. Long. 4, 

 diam. 1*5 mm. 



A white shell of rather thick substance, with moderate longitudinal 

 ribs and no spiral sculpture. The columella is furnished with a rather 

 prominent acute plait. 



5. Drillia rugisculpta. PI. XXII, Fig. 20. 



Testa fusiformis, f usca ; spira elato-conica, acutiuscula, ad apicem 

 acuta ; anfractus 6, primi 2 rotundati, laeves, papillares, caeteri 

 convexiusculi, costis longitudinalibus circ. 14 rotundatis mediocriter 

 elevatis, nodulosis, liris spiralibus angustis decussati, sutura impressa 

 sejuncti ; anfractus ultimus spiram fere aequans, ovatus, ad basim 

 attenuatus, vix rostratus ; apertura oblongo-ovata, utrinque angustata ; 

 columella rectiuscula, labrum arcuatum, leviter incrassatum, sinu 

 postico latiusculo emarginato ; canalis anticus latus, brevissimus. 

 Long. 7, diam. 3 mm. 



A small, brown, roughly sculptured shell, in which the longitudinal 

 ribs are rather thick and nodulous, while the decussating spiral ridges 

 are much thinner, but clearly defined. 



6. Solariella Beckeri. PI. XXII, Fig. 21. 



Testa orbicularis, depresse conica, pallide fulva, rufo-fusco radiatim 

 strigata ; spira obtusa, vix elata ; anfractus 5, convexiusculi, laeves, 

 aut obsolete striati, sutura anguste impressa sejuncti, juxta suturam 

 leviter crenulati ; anfractus ultimus irregulariter radiatim rugosus, 

 ad peripheriam rotundatus, ad basim rotunde convexus ; umbilicus 

 profundus, parum latus, rugoso plicatus ; apertura circularis. Alt. 2, 

 lat. 4 mm. 



A curiously-marked little shell with streaks like varices, putting 

 one in mind of the genus Segmentina. The whorls of the spire are 

 smooth, but the growth-lines become conspicuous and rough towards 

 the completion of the body- whorl, and puckered round the umbilicus. 



7. Gibbula Beckeri. PL XXII, Fig. 22. 



Testa depresse conica, luteo albida, maculis strigisque fuscis et 

 violaceis profuse ornata ; spira parum elata ; anfractus 4, primi 2 

 laeves, penultimus supra bicarinatus, infra leviter concavus, ultimus 

 tricarinatus, oblique subtiliter striatus ; basis leviter convexa, spiraliter 

 planato-lirata ; umbilicus latiusculus, albus ; apertura oblique sub- 

 quadra ta ; columella leviter dextrorsum obliqua ; labrum simplex. 

 Alt. 4, lat. 6 mm. 



