from the Vancouver District. f 



35. Isnpis fpncstrala. 



I. testa /. nrnitJetp forma et indole siinili ; carinis ix. aoittis r(|iiarnni 

 iv. in «i|iira inonstrantnr) cincta ; interstitiis (lii|ilo latiorihus, con- 

 cinne (|ua(iratim derussatis, Ijiulis radiantibiis ncnti-ts.mis ; anf'r. 

 postice tnmentibus, suturis valde excavatis ; peritreiiiate contr.mo; 

 lal)ro a carinis pt-Ktinatn ; labio pariotein parnni attiiigpnte, medio 

 calloso ; uinbilico angusto. Long. -18, long. spin. -13, lat. "ly, 

 div. 70°. 



Hah. Neeah Bay {Sivan) ; S. Diego and Sta. Barbara Island 

 (Cooper). 



Dr. Cooper's shells are much smaller than those from the 

 Vancouver district, which are white and eroded, varying much 

 in the size of the umbilicus. 



36. Alrnnia reticulata. 



A. testa parva, subtnrrita, rufo-fuscn, marginibus spirre rertis ; anfr. 

 nucleosis ii. et dimidio, naticoideis, laevibus, tiiineiitibus, ajiiee 

 mamillato ; norm, iii., tumidis, suturis inipressis ; liris angu!<tis, 

 distantibus, spiralibus circ. xii. fqnaruni iv.-vi. in spira mon- 

 8trantur),etlirulisradiantibus, supra transeuntibus, hand nodnlosis, 

 secundum interstitia incurvatis, eli'gantcr exscnl|)ta ; interstitiis 

 altis, quadratis ; peritremate continuo, subrotundato, acutiore. 

 Long. 'OH-i, long. spir. 'Or>, lat. '04, div. 30°. 



Hub. Neeah Bay; two specimens in shell-washings {Swan). 



37. Alvania flosa. 



A. testa A. reliculatce indole et colore, hand scnlptura, simili ; multo 

 majore, elongata ; anfr. nucl. ?... (dctritis), norm, iv.; striis parum 

 separatis circ. xviii. (quarum circ. xii. in spira monstrantur) cincta; 

 rugulis radiantibus posticis creberriniis, baud expressis, circa peri- 

 pberiani evanidis ; peritremate continuo ; columella rufo-purpureo 

 tincta. Loiig. -13, long. spir. -09, lat. -OG. div. 20°. 



Hub. Neeah Bay; orre specimen in shell-washings {Swan), 



38. tAssiminea subrotundata. 



1A. testa hand parva, Isevi, tenui, fusco-olivacea ; anfr. nucl. ?...(de- 

 collatis) ; norm, v., rapide augentibus, subrotundatis; niaririnibus 

 spirse rectis, suturis valde inipressis; basi rotundata, baud uinbili- 

 cata ; apertura rotundato-ovali, intus fuscescente ; pcritrem.ite 

 continuo ; labro acuto ; labio parum calloso ; columella arcrj.:a. 

 Long. "28, long. spir. '13, lat. •2, div. 6.0°, 



Hab. Neeah Bay ; one specimen amoTig Lacuna {Swan'}, 



May prove to be a large Hydrobia. 



39. tPaludinella caatnnca. 



TP. testa compacta, solidiore, fusco-cabtauca, niargiuibiiB cpirae rec- 

 16 241 



