neio Japanese Marine Mullusca. 37 



Compare 1 w itii 7'. krcl/ra, Liiiii., this shell is shorter in 

 j)ro|i()ition lo its leiiotli, more angular at. the base, and tlie 

 frpiral ridges are mucli stouter and less numerous. 



Eutrochus pulcherrinius, sp. n. (LM. II. Iiy. 13.) 



Testa olato-conica, urabilicata, lutcoalbida, maculis fuscis niimiLis 

 libcraliter coiispcrsii ; spira acuta, gradata ; anfractus 7, priiui 2 

 lipves, deiiulo obliciuc plicati, exindo sulxjuadrati, 2-^5 oariiiati, 

 liris angustis nuuit-rosis graiiulatis spiraliter instructi ; anfractus 

 ultimus brevis, latiusculus, tricaniiatus, dense grano-liratus ; 

 liasis k'vitcr couvexa, liris alternatirn crassiusculis et august is 

 eiugulata, oblique creberrimo striata; umbilicus rotuudalus, 

 medioeritcr latus, ])rofuiidus, intus hevis ; apertuni mediocriter 

 lata, intus alba, levissinie sulcata; peristoma couLiuuuni, tciiuc. 



Alt. 17, maj. diam. 16 mm. 



Ilah. Oshima. 



A pretty shell, quite different from any other speeies of 

 the genus. The numerous bright brown s[)ots wliieli adorn 

 its surface are characteristic, as also the elaborate cancellation 

 of the uj)per whorls. 



Fissuridea elahorata, sp. n. (PI. 11. fig. 8.) 



Testa ovata, mediocriter data, antico levissime angustata, jiostico 

 convexa, albida, nigro-fusco irrogulariter sj)arsim radiata, costis 

 radiantibus circ. 35 nodosis, lateralibus peculiariter denticulatis, 

 interstitiis clatbratis proi'unde et conferte fossulatis instructa ; 

 t'oramcu oblongum, quadri-denticulatum, ante medium situm ; 

 interiui callo teuui alba induta, ad marginem rugose crtuulata. 



Long. 20, lat. 3 2, alt. S mm. 



Uab. Oshima. 



It seems almost impossible to adequately describe the 

 elaborate sculpture of this beautiful shell. The numerous 

 radiating ribs are crossed by nodules or transverse bars^ 

 pointed at each end, giving them a scalloped character ; there 

 is here and there a narrow intervening rib, and the interstices 

 throughout are deeply pitted. 



Duliuni pi/n/orme, sp. n. (IM. II. fig. 14.) 



Testa conico-pyriformis, albida, pallide fulvo sparsim maculata et 

 strigata ; spira conica, elatiuscula ; anfractus 5, apicales lusca 

 tincti, delude rotundc convexi, spiraliter anguste lirati ; an- 

 fractus ultimus leviter intiatus, postice rotundatus, antice attenu- 

 atus ; apertura oblongo-ovata, utrinque attenuata, intus incon- 

 s[)icue lirata ; labrum mediocriter latum, rugose plicatum ; colu- 



