1894. PROCEEDINGS OF THE NATIONAL MUSEUM. 169 



lb connection with tlie foregoing on the relations and variations of 

 the west American forms of iSiphonaria, it will be found on examina- 

 tion that the species or forms of other fannal regions, more or less 

 remote, exhibit the same characters of variation, if not as extreme, 

 nevertheless in a greater or less degree. For this purpose among 

 numbers of specimens compare S.brunnea Hanley from Bermuda, etc. 

 (Jones); make a similar comparison with *S'. leucopleuni Gmelin from 

 the Viti Islands. 



Family Terebrid^.. 

 TP:KEBRA (iMYURELLA) VARIEGATA, (J my. 



Many examples. San Jose Island (No. 56297, U. S. N. M.), La Paz 

 (No. 101719, U. S. N. M.). 



The specimens from the first locality are all young shells. Capt. 

 Forrer also reported tlie above species from La Paz, where Fisher 

 collected a varietal form (No. 101720, U. S. N. M.). 



TEREBRA (SUBULA) STRIGATA, Sowerby. 

 ^ Buccinum elongatmn, W()oi>. 4" ^- ~ehra, Kienkk. -\- T. fiawmea, Lesson. 

 One si)ecimen, beach; Tres Marias. 



Rarely known to occur so far to the north; "common at Panama."* 

 Dr. Jones collected two examples at Payta, Peru, and Cuming collected 

 it at the Galapagos. 



Family Conid^. 



CONUS DALLI, Stearns. 



Seven examples. 



Tres Marias, Maria Madre (Nos. 37417, 3741S, U. IS. N, M.). Since 

 describing this form in April, 1873, t numerous specimens have passed 

 under my examination, and confirm the conviction which led me at the 

 time to regard this embroidered cone of the Mazatlan province as a new 

 species. 1 see no necessity for modifying the diagnosis or the comments 

 published at that time other than to add what is herein written. 



In the collection of Mr. Fred. L. Button, of Oakland, Gal., is a remark- 

 ably fine series of young shells which are even more characteristic and 

 distinct from any other of the embroidered cones than are the average 

 adults of C. Dalli from (7. textile, etc., which it occasionally somewhat 

 resembles in pattern and color of markings. Mr. Fisher collected two 

 living and several beach examples at the island of Maria Madre, the 

 principal of the Tres Marias group. The largest, though somewhat 

 rubbed and worn at each extremity, measures long. 2.3.5, lat. 1.29 

 inches; if perfect the length would be not less 2.65 inches. 



Prof. Verrill refers, probably, to this shell in his "Contributions to 



* Hinds, ill Proc. Zool. Soc, 1843, p. 160. 

 tProc. Gal. Acail. Scieuces. 



