344 REPORT ON ALBATROSS MOLLUSCA DALL. 



Calliostoma taeniatuni Wood. 



Trochus tcmiatus'Wood, Ind. Test. SuppL, PI. v, Fig. 12, 1828; Phil. Mom, Trochidae, 



p. 251, t. 37, Fig. 12. 

 Trochus bicolor Lesson; Voy. Coq., p. 345, t. 16, f. 3. 



Hab.— Falkland Islands (Philippi). Station 2770, in 5S fathoms, 

 sand, off Spring Bay, east coast of Patagonia, and also at Station 2771, 

 off Point Grallegos, in 50 fathoms, sand; temperature 49°. 4 F. 



This species is referred to Photinula by H. & A. Adams, but appears 

 to be simply a smooth Calliostoma. There is no umbilical callus as in 

 Photinula ccerulescens, which was also obtained by the Albatross at Sta- 

 tions 2770 and 2771. 



Calliostoma Coppingeri Smith. 



Plate xii, Fig. 4. 



Trochus (Ziziphinus) Coppingeri E. A. Smith, Ann. Mag. Nat. Hist., Ser. 5, Vol. VI. 

 No. 34, p. 320, Oct., 1880. 



Shell glistening, small, flattened at the periphery, seven-whorled; 

 color pale waxen white, with piukish nacre; the exterior on the spiral 

 sculpture more or less articulated, with elongated brown spots; these 

 are sometimes wholly absent, but disappear last on the cariual threads; 

 nucleus white, small, subglobular, polished, not sculptured; early whorls 

 spirally threaded, the two threads next in front of the suture granu- 

 lous; these and all the others become flattened out and obsolete on the 

 last whorl or two of the adult in most cases, but are exceptionally re- 

 tained; the periphery of the whorls is angulated but not keeled; in 

 front of it is another angle on which the suture is laid; the space be- 

 tween is flattened and nearly vertical, becoming more inclined on the 

 last whorl; transverse sculpture of inconspicuous incremental lines, 

 rarely emphasized; base moderately convex; the umbilical region im- 

 pressed and surrounded by three or four coarse, often articulated spiral 

 threads; outer lips thin, sharp, rounding to the columella without no- 

 ticeable interruption; pillar somewhat arched, pearly, rather strong; 

 body with a faint wash of callus; operculum amber-colored, thin, mul- 

 tispiral. Maximum altitude of shell, 10; diameter, ll mm . 



Hab.— Stations 2765, 2766, in 10 fathoms, sand, off the Iiio de la Plata, 

 and 276S, off Cape Delgado, in 43 fathoms, sand. 



This shell was at first supposed to be new, but it is probably the un- 

 figured species described by Mr. Smith from 28 fathoms off the mouth 

 of the Kio de la Plata in latitude 36° 47' S. 



This species has much such a surface as C. yucatecanum Dall, which, 

 however, is umbilicated. There is a small swelling,' hardly a tooth, at 

 the end of the pillar. Its colors look washed out; otherwise they also 

 recall those of C. yucatecanum. There are no lira} in the throat. Occa- 

 sional specimens have the spiral sculpture emphasized ; in such cases 

 the flattening of the periphery becomes less prominent. Now and then 



