336 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



has around the lower part three distinct rounded spiral lirse which 

 also extend on to the penultimate and gradually die out upon the last. 

 The general tone of the shell is a deep lilac, but oblique streaks of 

 a darker tint at irregular intervals are noticeable upon the body-whorl, 

 the base of which exhibits some dark and light concentric zones, 

 excepting around the umbilical region, which is white. The faint 

 sulci within the aperture coiTCspond with the almost obsolete external 

 spiral lirse. 



7. Photikula. koseolineata, n.sp. Fig. in. 



Testa turbinata, imperforata, alba, lineis gracilibus spiralibus roseis 

 picta, sub tegmine cretaceo Icevi spiraliter tenuiter sulcata; spira 

 convexe conica, ad apicem obtusa ; anfraetus 5 celeriter accrescentes, 

 parum convexi, ultiraus ad peripheriam rotunde obsolete angulatus, 

 antice vix descendens, infra suturani versus aperturam leviter concave 

 impressus, infra medium subplanatus ; apertura obliqua, intus obsolete 

 sulcata ; columella oblique arcuata, incrassata, reflexa, appressa, alba. 



Diam. niaj. 15, min. 14-5 mm. ; alt. 15 mm. 



Hah. — San Sebastian Beach. 



This species is well characterized by its peculiar foiiu and colour. 

 The outer calcareous coating of the shell, in which are the colour-lines, 

 is almost smooth externally, but the pearly layer beneath is rather 

 strongly sulcate. This is very evident where the outer layer has been 

 chipped off. The penultimate whorl has four rose-coloured spiral lines 

 and the last nine, four of which are upon the lower surface. 



8. Photinula c^rulescens (King). 

 Trochm ccerulescens, King : Philippi, Conch. Cab., p. 250, pi. xxxvii, 

 fig. 11. 

 Hah. — San Sebastian Beach. 

 One very large specimen is 29 mm. in diameter. 

 A second specimen is somewhat different, having the body-whorl 

 more convex above and the base less impressed in the umbilical region. 

 I cannot agree with Pilsbry that this species is only a variety of the 

 P. tctniata of Wood. In my opinion they are quite distinct. 



9. Photinula violacea (King). 



Hah.—^\o McClelland. 



10. Nacella mytilina (Helbling). 



Hab.—^\o McClelland. 



11. Chione Fuegiensis, n.sp. Fig. v. 



Testa parva, ovata, mediocritcr compressa, ina3quilateralis, dilute 

 fuscescens ; margo dorsi posticus declivis, rectiusculus. anticus brevior, 

 sequaliter descendens, vix curvatus ; latus anterius late rotundatum, 

 posterius paulo angustius ; valvae crass?e, concentrice sulcatse, sulcis 

 hie illic cseteris profundioribus ; pagina interna in medio albida, 

 marginem minute crenulatum versus violacea ; lunula angusta, elongata, 

 linea incisa circumscripta ; cicatrix antica elongata, irregulariter ovata, 

 postica subpiriformis ; sinus pallii brevis, subacutus. 



Long. 25-5, alt. 19-5, diam. 11 mm. 



iZrtJ.— Rio McClelland. 



