. West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ... the singular nameE. yod. 204 WEST AMERICAN SHELLS Pyramidella conica, var. variegdta, Cpr.,the Obelisk-sliell, (Obeliscus variegatus).This little shell is shown in Figure is a fold on the columella, and it is brownish in color, though somewhatclouded. It is found in southern waters, but isquite rare, even there. Having studied smallshells for some time weturn now to a l
. West American shells; a description in familiar terms of the principal marine, fresh water and land mollusks of the United States found west of the Rocky Mountains, including those of British Columbia and Alaska ... the singular nameE. yod. 204 WEST AMERICAN SHELLS Pyramidella conica, var. variegdta, Cpr.,the Obelisk-sliell, (Obeliscus variegatus).This little shell is shown in Figure is a fold on the columella, and it is brownish in color, though somewhatclouded. It is found in southern waters, but isquite rare, even there. Having studied smallshells for some time weturn now to a large one,shown in Figure 216,named Scaphella stedrn-sii, Dall, Stearnss great shell, which isnearly six inches long,comes from northern Al-aska. The inner layer ispurplish, while the outer,which resembles porce-lain, is bluish white. Notethe distinct whorls on thecolumella. Scaphella a r n h e % m i,Rivers, Aniheims Volute,dredged in Monterey Baya number of years ago, re-sembles the last species,but is only half the color is yellowish, and the folds on the col-umella are four in number. It is to be hoped thatmore specimens of this fine species may yet bedredged from beautiful Monterey Fig. 216, X f> {*) THE SMALLER SEA-SHELLS ^05 From these two large shells we bound back tosome very small ones most of which, in fact areso minute, that no attempt will be made to describethem in this book. Fortunately it is not necessary,for a work is shortly to be published by the Na-tional Museum, we are told, which will fully de-scribe the great group of minute shells known un-der the generic name of Turhonilla. The general shape of these little shellsis shown in Figure 217, and the speciesindicated by that cut is known as Tur-honilla castdnea, Cpr., the Chestnut Tur-honilla, (Chemnitzia castanea). Its eight ,^.^ ,^,or ten whorls are marked with numerousfine axial ribs, and though it is so small it is abeautiful shell. Its color is chestnut brown, asmight be expec
Size: 1022px × 2444px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectmollusks, bookyear190
