NO. 12 STRONG AND HERTLEIN" : MARINE MOLLUSKS 215 



whorls and is bleached until the color pattern is indistinct. The de- 

 scription of the nuclear whorls and color pattern is taken from a para- 

 type of 7 postnuclear whorls. 



Holotype: No. 745 and paratype 745A (Calif. Acad. Sci. Paleo. 

 Type Coll.), from Loc. 27,229 (C.A.S,), in from 3 to 9 fms. in Bahia 

 Honda, Panama. L. G. Hertlein collector. Twenty additional specimens 

 were dredged at the same locality and 4 off Taboga Island, Panama. 



The sculpture of this species is somewhat similar to that of Triphora 

 hemphilli Bartsch,^^ described from Lower California, but it is a smaller 

 and differently colored shell. 



This species is named for Mr. Herman Marsh, musician, who ac- 

 companied the expedition, during which the present collection was 

 made. 



Eumete bimarginata C. B. Adams 

 Plate 20, Fig. 4 



Cerithimn himarginatum C. B. Adams, Ann. Lyceum Nat. Hist. New 

 York, vol. 5, 1852, pp. 375-376, 533. "Panama." 



Eumete himarginata C. B. Adams, Bartsch, Proc. U. S. Nat. Mus., 



vol. 39, 1911, p. 566, text fig. 2. Dredged in 29.5 fms., in the 



Bay of Panama; also in 26 fms., on sandy bottom, ofif La Paz, 



in the Gulf of California. Adams' original locality record of 



Panama also cited. 



Hypotype: No. 726 (Calif. Acad. Sci. Paleo. Type Coll.), from 



Loc. 27,228 ( C.A.S. ), dredged in from 3 to 9 fms. off Taboga Island, 



Panama. L. G. Hertlein collector. Thirty-six specimens were dredged 



off Taboga Island, Panama, and 25 specimens were dredged in Bahia 



Honda, Panama. 



The specimens described by Adams and that described by Bartsch 

 are evidently all young. The Academy's collection contains specimens 

 with several more whorls. These show on the lower whorls a slender, 

 smooth, median spiral cord not shown on Bartsch's figure. The speci- 

 men figured has 13 postnuclear whorls and measures: length, 7.8 mm; 

 diameter, 2.0 mm. It was dredged in from 3 to 9 fms. off Taboga 

 Island, Panama. 



43 Triphoris hemphilli Bartsch, Proc. U. S. Nat. Mus., vol. 33, December 

 12, 1907, p. 253, pi. 16, fig. 12. The type was collected by Mr. Henry Hemphill 

 "from shell washings at Point Abreojos, Lower California." 



A 



