122 AMERICAN JOURNAL 



Conchyl. 1861, p. 129. Cpr., Sup. Rep. p. 636, 1864. 



Coop. Geogr. Cat. 1867, p. 3, No. 7. 



Hah. Corea, Belcher, N. Japan Seas, Sclirenck. ? Neeali 

 Bay, Swan. Smithsonian Cabinet, ? 15,598. 



Dr. Carpenter has marked on the tablet of a worn and broken 

 neural valve " T. corsanica war. frontalis, Midd.," Neeah Bay, 

 Swan. On comparison with figures, I am disposed to refer the 

 valve, which though worn smooth, still retains some slight traces 

 of striae ; to W. Grayi^ Dav., which has a very large foramen, 

 while both Reeve and Sclirenck figure coreanica as with a small 

 complete foramen. 



Middendorf's T. frontalis h undoubtedly a Terebratella, but, 

 assuming the correctness of his figures and descriptions, I can 

 see no reason for uniting /?-c»ii(a/is with coreanica, or indeed with 

 any other species with which I am acquainted. It seems to be 

 remarkably distinct and belongs to a different fauna from core- 

 anica. The young state of the latter, according to Schrenck, is 

 of a uniform reddish color (var. concolor) while the adult is ra- 

 diated with red (var. radiata) ; the former is miniata, Gld., the 

 latter the typical coreanica. 



Terebratella, ? — Plate 6, fig. 4. 



? Terebratella suffusa, Rve., Conch. Ic. pi. v, fig 18. Journ. 



de Conchyf. 1861, p. 128. 

 Hab. " .- Cape of Good Hope, Ex. Ex." Smithsonian 

 Cabinet 5110. 



A single specimen, wdiich resembles Reeve's suffiisa as figured 

 in the Conch. Icon., exists in the Smithsonian Cabinet, and is 

 doubtfully marked as from the Cape. It diflFers from suffusUy 

 as described by Reeve, in wanting the suffusion, being of a light 

 yet rather warm brown ; in the deltidia being more widely di- 

 vided, perliaps because it is an older shell than Reeve's type ; 

 and finally in having a flexuous margin and faint depression 

 near the middle of the margin of the hsemal valve. This, how- 

 ever, is not noticeable in the younger portion of the shell. 



I am inclined to regard them as identical, and in order that 

 some one, who may be able to examine Reeve's type, can settle 

 the point I add a description and figure of the loop, which Reeve 

 has not described. 



The crura are small, slender, short and acute. The loop prq- 

 cesses are exceedingly slender, mere threads in fact, and roundly 

 deflected outward at first ; bending inward just before the neural 

 bend, they give ofl' two moderately broad septal processes which 

 meet each other at the end of the septum Avith an angle of 60° 



