Genus Scalaria, Lam.
Scalaria bellastriata, Cpr. n. s. State Collection, No. 393, b.
S. t. curtâ tenuissimâ, albidâ; anfr. vii. valde tumentibus, haud nisi per costas attingentibus; costis circ. xvii. acutis extantibus, reflexis, haud semper in spirâ attingentibus, postice angulatis, parum spinosis; interstitiis circa spiram basimque dense spiraliter lirulatis, lirulis rotundatis, super varicum angulum obsoletis; aperturâ ovatâ, umbilico magno.
Long. 0·78, long. spir. 0·55, lat. 0·38; div. 40°.
Hab. Monterey, a fragment; San Diego, 1; San Pedro, 3; Cooper.
So different in sculpture from S. pretiosa and other species with which it agrees in shape, that there will be no difficulty in recognizing perfect specimens.
Scalaria subcoronata, Cpr. n. s. State Collection, No. 393, a.
S. t. compactâ, haud elevatâ, albâ; anfr. x. rotundatis, parum attingentibus; costis circ. xiii. acutissimis, expansis, vix reflexis, postice attingentibus, lineis margini spiræ dextro parallelis spiram, ascendentibus, t. adolesc. postice vix coronatis, adultâ simplicibus; aperturâ subcirculari, umbilico nullo; sculpturâ spirali nullà.
Long. 0·45, long. spir. 0·29, lat. 0·22, div. 38°.
Hab. Monterey; Cooper.