126 
Cal. (T. S. Oldroyd), as follows: ‘‘Lateral areas with 4 (on one 
side of valve ii, 5; on one side of valve iv and v, 3) radial riblets, 
which are very weakly, hardly perceptibly, granose. Sutures very 
feebly crenate. Anterior and posterior valves with 9 slits each. 
Color reddish (but not at all of an orange cast), with a few in- 
conspicuous white spots on some of the lateral areas. 
Type locality:—Catalina Island, Cal. Type was orange with 
some dark sutural dots, and the lateral areas 3-ribbed, some low 
pustules on the ribs. 
1702 Ischnochiton scabricostata Cpr. 
Type en en re Beach, Cal. (Miss Ida M. Shepard). . 
“Similar to C. decoratus in sculpture of end valves and lateral 
areas; but the central areas have no wide, smooth triangle at the 
ridge, such as types of C. decoratus have (Man. Conch. 14: t 58 
f 18); being somewhat irregularly pitted towards the beaks, and 
with rows of pits on each side of a small oblong tract at the ridge; 
most valves pitted also on the ridge anteriorly.’’—Pilsbry, Nau- 
tilus 10:50. 
1703 Trachydermon Sharpii 
Pilsbry, Nautilus 10:50, describes this from Unalashka (Dr. 
Benj. Sharp). 
1704 Pisidium scutellatum 
Sterki, Nautilus 10:66, describes this as new, giving the cen- 
ter of its distribution as the Great Lakes, ranging from Mich. to 
Shendon, Mont., 9000 ft. elevation (Roper). Roper’s specimens 
are said to differ in some details. 
1705 Leda taphria Dall. 
Dall substitutes this name for Hinds’ preoccupied L: celata, 
in Nautilus 10:70. 
1706 Sphyradium edentulum 
Sterki, Nautilus 10:75, based on Pupa edentula Drap. (Ver- 
tigo simplex Gld.). 
1707 Bulimulus hypodon 
1708 Bulimulus lamellifer 
Pilsbry, Nautilus 10:102 describes these two as new, from 
Lower California. 
1709 Vertigo coloradensis 
Cockerell, Nautilus 10:134 discusses this and its allies. 
1710 Planorbis nautileus L. 
Taylor, Nautilus 10:139 treats of the record of the distribu- 
tion of this European shell in America, from Ontario to Alberta, 
ete. 
Synonymy:—P. costatus De Tarr & Beecher. 
1711 Pupa Gabbii mexicanorum 
Type locality:—‘‘rejectamenta of the Rio Grande at Mesilla, 
N. M.” 
“It is 3% mm. long, diam. 1% mm., white, delicately but dis- 
tinctly ribbed, the ribs filiform, 4 of them entering the parietal 
wall of the aperture. The aperture is rather narrow, with the 
outer margin somewhat flattened, and inclined to be elbowed 
“nces The peristome is quite thick.’’—Cockerell, Nautilus 10: 
43. 
1712 Polygyra rhyssa 
Type locality: —-White Mts., N. M. (Ashmun). 
Dall, Nautilus 11:2, describes as new. 
1713 Holospira (Haplostemma) Hamiltoni 
Dall, Nautilus 11:38. Rio Grande Mts., Brewster Co., Texas, 
