ieee CH | 38 Piha aks eh ts by eeu Lome ac 
by the Mexican women and girls and used in making shell-flowerg 
and in other ornamental ways, the great variation in color ex- 
hibited by the valves rendering it possible to create many pretty 
effects. The shell is oval in shape, rather flat, thin, and marked 
fine, concentric lines, The largest specimens of this that I have 
ever seen were found here, individuals measuring an inch and a 
quarter long, an inch across and half an inch in thickness being 
not uncommon. Keep ealled this the ‘‘spotted Heterodonax,” but 
it is rarely spotted in the individuals I have seen, and he must 
have chosen that term because of the rather unfortunate specifis 
name. It is one of the few shells occurring in both the Atlantic 
and Pacific Oceans, being found from Georgia to Brazil on the At~ 
Jantic coast, and from Monterey, Cal., to Panama on the Pacific. 
‘Along with Heterodonax each morning I would generally find 
a few fresh specimens of another pretty shell, 
21:0477 Crepidula arenata, 
or ag it is now called, 
21:0478 Crepidula excavata Brod. 
Orcutt 4158: On whale bones, Magdalena bay, in situ. 
Man-of-War Cove is on the bay side of Magdalena Island, 
Rather more than a mile away on the ocean side, one comes to 
a long sandy beach forming what is locaily known as Santa Maria 
bay—treference to which may occasionally be found in scientific 
literature. To the south there is a long stretch of rocky beach, 
and high cliffs, in large part inaccessible to the naturalist, To 
the north is Point San Lazaro, still unexplored I believe. Be- 
tween Santa Maria and Magdalena bays there exists a half mile 
or more of sand hills, in large part devoid of vegetation, but 
among which a multitude of dead shells may be found in the 
drifting sand, 
Nearly all the shells collected on this trip were submitted 
to Dr. W, H. Dall, of the U. 8. National Museum, resulting in the 
following list as named by him: 
21:0479 Acanthina lugubre Brod, 
Orcutt 10166: Magdalena bay, abundant, 
21:0480 Aecanthina muricata Brod. 
Oreutt 10289: Magdalena Island, beach worn. 
21:0481 Acmaeéa discors Phil. 
Orcutt 10465: A form of this species, not rare. 
612 Acméa fascicularis Menke. 
617 Acmeea rosacea Carpenter. 
21:0482 Acmuaea textilis Gould. 
Orcutt 10186: Magdalena bay; common. 
21:9483 Acteocina carinata Cpr. (456). 
21:0484 Acteocina cerealis Gould. (457). 
21:9486 < cteocina culcitelia Gould. 
21:0486 “Acteocina inculta Gould. 
21:0487 Acteocina eximia Baird. (2638). 
1386 Acteeon punctocelatus Cpr. 
1329 Acteon traskii 
21:0488 Aesopus eurytoides Cpr. 
2109 Alaba Jeannettz 
$108 Alaba supralirata Cpr. Gulf of Cal. 
