new Species of Moll u sea. 235 



Clathurella excellens, sp. n. (PI. III. fig. 5.) 



Testa ovato-turrita, albn, luteo tincta, fulvo-fusco hie illic pauci- 

 maculata ; spira elatiuscula, gradata ; aniract as 6, supra angulati, 

 longitudinaliter rugose plicati ; plicis 8, nodulosis; anfractus 

 ultimus spiram superans, supra nodose angulatu3, infra con- 

 tractus, breviter rostral us ; apertura oblonga, angustiuscula ; 

 peristoma crassum, intus denticulatum; sinus posticus mediocriter 

 profundus, rotunde curvatus ; columella recta, fere loevis ; canalis 

 brevis, antice expansus. 



Long. 10, maj. diam. 4 mm. 



11 ah. Osurai, Japan. 



A small shell of a striking and somewhat gay character. 

 The nodules on the ribs are quite prominent, mostly of a 

 pale yellow colour, but here and there they are ornamented 

 with conspicuous bright brown blotches, sparingly distributed. 



Clathurella royi, sp. n. (PI. III. fig. 6.) 



Testa ovato-turrita, crassa, pallide luteo-fulva, ad apicem fusca ; 

 spira elatiuscula, subgradata ; anfractus 8, primi 2 laeves, se- 

 quentes convexi, supra angulati, longitudinaliter plicati ; plicis 

 crassis, rotundatis, valide nodulosis ; anfractus ultimus spiram 

 fere aequans, supra convexus, angulatus, infra contractus, brevis- 

 sime rostratus; apertura mediocriter angusta ; peristoma ci'assum, 

 intus denticulatum ; sinus mediocriter latus et profundus ; colu- 

 mella leviter sinuosa, haud denticulata ; canalis brevis. 



Long. 7, maj. diam. 3 mm. 



Hub. Osumi, Japan. 



A small shell of solid growth, with very stout, strongly 

 nodulous ribs, brown apex. Otherwise the shell is of a light 

 uniform buff-colour. 



Conns optimus, sp. n. (PL III. fig. 7.) 



Testa turbinata, crassa, fusca, maculis grandibus albis diversi- 

 formibus ornata ; spira broviter conica ; anfractus angulati, 

 anguste planulati, ad angulum tuberculati ; anfractus ultimus ad 

 unguium tuberculis rotundatis mediocriter elevatis subdistantibus 

 coronatus, infra angulum convexiusculus, baltea alba irregulariter 

 interrupts infra medium ornatus, basin versus leviter attenuatus, 

 granulatus ; apertura angusta, intus purpurea ; peristoma postice 

 breviter sinuata. 



Long. 23, maj. diam. 12 mm. 



I lab. New Caledonia. 



The pattern of this shell is rather excentric ; there is a 

 large, white, curiously formed blotch proceeding diagonally 



