DIAGNOSES 

 or 



KEW POTtMS OE MOLLUSCA 



FROM 



THE VAXCOUVER DISTRICT. 



BT 



PHILIP P. CARPENTER, B.A., Ph.D. 



The shells here described were mostly collected by Indian chil- 

 dren for their excellent teacher Mr. J. G. Swan, in the neiglibour- 

 hood of Neeah Bay, W. T. They were presented by him to the 

 Smithsonian In>titution, Washington, D.C. ; and, in accordance 

 with their liberal policy, the first available duplicates will be 

 found in the British Museum or in Mr. Cuming's Collection. 

 The •species are numbered to correspond with the list in the 

 Briti a Association Report for 1863, pp. 626—628; see also 

 pp. 636-66i. 



5. Mcera salmonea. 



M. testa parva, solida, coinf)acta, subquadrata ; laevi, nitente, epi- 

 dermide tenui cinerea iiuluta ; extus pallide, infus vivide salmoneo . 

 tincta; marginibus doisalil)us rectis, ad angulum 120° separatis, 

 umboiiibus baud extantibus ; marginihus antico et ventrali regu- 

 lariter late excurvatis; parte postica brevissima, hrud angulata : 

 intus, dent. card, utraque valva ii., quorum unus bifidus ; laterali- 

 bus V. dextr. a'quidistautibus, ant. extante, post, parvo ; nyrapbis 

 rectis, baud conspieuis ; cicatr. add. post, subrotundata, ant. sub- 

 rboniboidea ; sinu pallii satis regulariter ovali, per iv. inter v. 

 partes iiiterstitii poirecto. Long. '.57, lat. •4.5, alt. 'll poll. 



Variat testa aurantiaca, rarius albida, rosaceo tincta. 



Hab. San Francisco [Pac. Rail. E. E.) ; Neeali Bay {Sivan)^ 

 plentiful; jMonterey, 20 fathoms {Cuope?-). 



In shape almost close to Macoma cras^n, Desh. (Arctic) ; 

 but that species is thinner, not glossy or salmon-coloured^ aud 

 has no lateral teeth. 



6. Angttlus variegatus. 



A. testa forma A. nhfvso simili, sed costa interna omnino caren*; 

 ralde iuset^uiluteiiiii, :>uUdiun.>, aittate, rosaceo et iiavido subrai' 



235 _^ 



