1918.] NATURAL SCIENCES OF PHILADELPHIA. 287 
—_ — — ae 
pegs S | 
a e ro) 
| 2 5 Sei 2 
| 2 oS =I i) 5 Seal ail i) 
Locatirty. 1 So i at ao ae = |os| se | ss\eg| 2 
fieeten lene) Tes Doe eceilestea A | g 
paela | 2 de) 2 eal eal 
| Px fae) a Ey (ete) jms |e Z 
| | tee ports 
| | | rae ee ea | 
Head of Alder Canyon...| 6.6|...|7.5|trace|7 |6 |... | 20 ; 119,038 
be i eo eo Sime 7c es Oy NSL5 7 ll.) 20> pat or033 
N.-E. side Mt. Lemon 6 (3.3 18 |trace]5 |4.5]... | 19 | 119,034 
i H oy 6 |4 |5 trace | 7 4 Sa EE LE GO Bs: 
a “ ne Sad Sh 8 trace | 6 5 edt tan lelt Ol OSo 
S. of spring, Mt. Lemon?..| 3.5/2 | 3.2} O (13.5/5 |... | 20 | 139,032 
S. 0. marmoris, Station 36 10.76.58 Sts 8 | ante | 20° | 109,07Ea 
| | 
Santa Catalinas above 7500 ft.: Mt. Lemon, Stations 5 and 6 
(1911), 32 and 37 (1913), on the trail to Webber’s and other places. 
Soldier Camp, Bear Wallow, Head of Alder Canyon (type loc., No. 
119,033). Kellogg Peak, southeastern side. 
Rincons at station 22, Spud Rock Ranger Station, and Station 
20, on the north slope. 
It lives in deep humid forest in colonies, as our eastern helices do, 
under logs and bark of quaking asp and Arizona fir, sometimes by 
dozens. Only at Spud Rock it was found deep in rocks, also humid. 
It is a timber snail of the Canadian zone forest. In general aspect 
the shell reminds one of the Californian helices. 
This is a common snail in the heavily wooded upper levels of the 
Santa Catalinas, taken at many stations. When picked up it emits 
a strong unpleasant odor recalling that of the goldenrod of Thunder- 
head mountain in East Tennessee (probably Solidago odora). This 
was first noticed at Kellogg Peak. When picked up the snail shot 
out two or three drops of liquid six inches or more (evidently ex- 
pelled from the lung as the foot is retracted). One often smelled 
them before finding any. But three or four shells broken by mice 
or squirrels were noticed in the course of collecting, and it may be 
that the snail-eaters object to the smell. 
By the genitalia this species is related to S. clappi of the Santa 
Rita range, and S. ferrissi of the Dragoons, though differing from 
both in several details. The shell is most like S. clappi. It differs 
from other Santa Catalina species by the minute granulation of the 
surface, which gives it a dull, silky luster. 
The color is rather variable. At Soldier Camp (Fig. 4), Cafiada 
2 Specimen not fully mature. 
