402 MOLLUSKS OF THE GALAPAGOS STEARNS. 



SiiUiicims LUNATIA <ir;iy. 



93. Polyiiices (Lunatia) otis ISrod. 

 + var./i(.st(r Cpr. 

 = K. GaJapagosa Roduz. 

 = N. pvfsplvua Rocliiz. 

 = N, SahdKjociisis Roclu/. 



Beacli, broken shells. 



Indefatigable Island (Mus, No. lOUiTO). Found also on tlie main- 

 land, as iar sontii as I'ayta, by Dr. Jones. 



Family LAMELLARIID^. 



G01UI8 LAMELLARIA lM()nl;i-;u. 

 04. Lainellaiia rstearnsii Dull. 



Rood Island, one exani[)le in ji'ood condit ion (Mus. No. 1028(t0). 



The shell doiibtlully assij;ned to the above species is quite small, 

 only 5 millinu'ters long, possibly not adult. It resembles in a general 

 way and is eU)ser to DalTs Stcarnsii than -to any species that I am 

 aware of; it has a narrower columelhi, however, than the species sug- 

 gested. Without the soft parts it is doubtful whether its place is with 

 this grou}) or with M<n\s('iii»a. Oapt. Couthouy's species from Orange 

 Harbor, Patagonia, L. ((i>t((rctic(( iiml L. pnrfcuids, are represented by 

 ligures of the animals, but not the shells, and the Albatross example 

 does not agree w'ith E. A. ?>niith's p<(fa(ionir<i. 



95. Laniellaiia ? rhoinbica l>:ill. 



Beach. 



Hood Island, one nearly perfect specimen. 



Superlhiiiily J X >C^OGrI..OSSA.. 



Family ACM.F]1D.F:. 



(irmis ACMJEA Ksclis.holt/.. 



96. Acmasa scutum < >rl>. 



Beach shells. 



Hoo<l and Indefatigable islands (Mus. No. 1(H*35!)). Several spec- 

 imens from Indefatigable. 



97. Acmaea striata Rvo. 



not A. striata Q. iV (i. 

 ? ^^A. scutum, Orb. var. 



r.each. 



Hood Island (Mus. No. 1()L»;?(!0). Six small exami»les. Probably a 

 variety of scutum. Carpenter regarded A', striatd l\ve. as a variety of 

 incsoleuca. 



