296 CONCORDANCE. 



M. rufa var. ?...B, septangularis ^ M. septangulai-is...B. attemiata 



— M. attenuata...B. accincta — M. accincta (exotic). 

 Aporrhais pespelecani — A. pespelecani. 



Cerithium reticulatum — C. reticulatum...C. tuberculare — Cerithiopsis 

 tubercularis...C. subulatum — Cerithium subulatum ?...C. adversnm 



— C. adveisum...C. Speucerianum — Chemnitzia ?...C. elegan- 

 tissimum — C. elegantissima (scarcely so from desc). 



Sabansea eburnea — Rissoa ventrosa...S. ventricosa — Lacuna crassior ? 

 ...S. rubra — Rissoa rubra (probably)... S.interrupta — R, parva, var. 

 ...S.vittata — R. cingillus...S. Montaguana — Odostomia unidentata ? 

 ...S.plicata — 0. plicata...S. unifasciata — Rissoa rubra, var. ?...S, 

 ulvae — R, ulvBe...S. paucicostata — R. ?...S. Binghamiana — R. 

 parva, var. ? 



Assiminia Grayana (pi. 9, f. 4, 5) — A. Grayana. 



Scalaria clathrus (pi. 9, f. 8) — S. communis... S. Turtoniana (pi. 9, f. 9) 

 S. Turtonis...S. Trevelyana (pi. 9, f. 10) — S. Trevelyana...S. cla- 

 thratula — S. clatbratula. 



Turritella tercbra — T. communis. ..T. elegantissima — Chemnitzia ele- 

 gantissima (again, from synonyms) (? C. rufa from description). ..T, 

 Clelandiana — Aclis unica...T. nitidissima — A. nitidissima...T. 

 vitrea — Rissoa vitrea...T. Dorvilleana — R. punctura...T. eburnea 



— R. ? ?...T. nivea — R. proxima ?...T. nitida — Odostomia 

 truncatula ? ?...T. Danmoniensis — Chemnitzia? fenestrata ? 



Turbonella Hibernica — Odostomia spiralis ?...T. Montaguana — Chem- 

 nitzia ? indistincta?...T. costata — Rissoa costata,..T. decussata — 

 Odostomia decussata. ..T. striata — Rissoa striata. ..T. jmllida — 

 Odostomia pallida. ..T. transparens — 0. ? ?...T. angusta — O. ? 

 ...T. nivosa — O. nivosa...T. vitrea — Rissoa vitrea (again from 

 synonyms). 



Alvania striata — Rissoa striata (again from synonyms, but not so from 

 generic description)... A. glabra — 1 ?... (Aclis from definition) A. 

 costata — R. costata (again from synonyms not so from desc.)... A. 

 Cranchiana — 11 



ZipporaDrummondi (pl.9,f. 11) — Rissoa auriscalpium, probably (exotic). 



Trochus papillosus — T. granulatus...T. Cranchianus — T. ?...T. Cle- 

 landianus — T. millegranus ?...T. ziziphinus — T. zizyphinus...T. 

 irregularis — T. ^...T. discrepans — T. zizyphinus (monster). 



Montagua Danmoniensis (? plate 9, f. 2) — Trochus 1 Montagui ? 



Nepthcusa crassa — Trochus lineatus. 



Gibbula tumida — Trochus tumidus...G.lineata — T. umbilicatus 1...G. 

 magus — T. magus 



Natica gkucina — N. monilifera...N. Lamarckiana — N. Alderi ?...N. 

 Browniana — Narica (exotic). 



Nerita littoralis — Littorina littoralis. 



