60 
three shells then show the intergrading of these two genera, and are of 
much importance when taken or considered in connection with the multi- 
tude of similar facts already known, and serves to shake our faith in the 
present methods of classification, specie and genera making. However 
this may be, these shells are unusually high and arching, as well as 
narrow and oblong, with the spire much nearer the posterior margin, 
than any other specimens of //. cracherodiz that I have examined of the 
same size. 
‘The spire of all of these shells is well worn, and consequently the 
sculpturing of the early stages of growth is lost, but there is sufficient 
evidence on the body of them, similar to that found on the adults of /7. 
cracherodii to warrant the assertion that the sculpturing is the same on 
both forms. 
The measurements of these shells are as follows: 
/ 
Largest specimen—Length 414, width 3%, height 134 inches. 
Medium specimen—Length 414, width 31%, height 1'% inches. 
Smallest specimen—Length 4, width 27¢, height 1!2 inches. 
Habitat, coast of Lower California. 
Mr. Frank Holzner, of San Diego, to whom I dedicate this interest- 
ing and very important variety, recently placed these shells in my hands 
for study and description. ‘They were fouud in a lot of shells received 
by him from the lower coast, and he very considerately laid them aside 
for future cousideration. He informs me that he has, at different times, 
received about a dozen similar shells from the coast of lower California. 
Prof. F. W. Kelsey, of the Commercial College here in San Diego, 
has already published a note on this variety in Vo/. XV///, page 67, 
of The Nautilus, in which he calls it a ‘‘freak,’’ and I am indebted to 
him for one of his excellent photos of the medium-sized specimen. I 
add a list of all the known forms of our West Coast Haliotis: 
flaliotis gigantea, var. kamtschatkana (Jonas). 
Flaliotis rufesuns (Swains). 
/laliotis corrugata (Gray). 
Flaliotis corrugata, var. asstmilis (Dall. ). 
Haliotis fulgens (Phillippi). 
[Taliotis fulgens, var. walallensis (Stearns). 
Flaliotis cracherodii (Leach). 
[Taliotis cracherodi, var. californiensis (Swainson). 
fTaliotis cracherodit, var. holznert (Hemphill). 
