No. 1610. NEW PACIFIC COAST MOLE USKS—DALL. 255 
Trichotropis. On the other hand, the species of Cancellarza most 
like the present shell, such as (. cumingzana Petit, have strong plaits 
and hardly any umbilicus in the very young stages, while their 
nucleus is of entirely different construction, the initial whorls being 
very minute, glassy and rather numerous, while the corresponding 
part of the present shell is chalky, swollen, and completes barely a 
single turn. I have not seen the unfigured Alora Adams, of which 
the type has an elevated spire, cancellated and lamellose whorls 
and small umbilicus with the pillar lip anteriorly somewhat reflected, 
but the diagnosis does not sound as if the present shell belonged 
to it. 
Genus) PHASTIANE LEA. Lamairek. 
Subgenus EULITHIDIUM Pilsbry. 
_— 
Hucosmia CARPENTER, Ann. Mag. N. Hist., 8d ser., XIII, June, 1864, p. 475; 
1st. sp. H. variegata Cpr. 
Hulithidium Pitssry, Man. Conch. (Tryon), XVII, index, 1898, p. 319; 
Nautilus, XII, Sept., 1898, p. 60. New name for Hucosmia Carpenter, 
1864, not of Stephens, Lepidoptera, 1829. 
This little group of depressed turbinate species extends farther 
north in America than the 77icolia group, and is represented in 
North Carolina on the east and Vancouver Island on the west coast 
of America, extending south to San Sebastian Island, Brazil, and to 
Peru, respectively. 
The East American species are /’. breve Orbigny, /’. brevissimum 
Pilsbry (=brevis C. B. Adams, not Orbigny), 1. concolor C. B. 
Adams, and perhaps /’. minutissimum C. B. Adams. 
On the Pacific Coast we have 2. variegatum Carpenter (not 
Phasianella variegata Lamarck), which may take the name of /. 
typicum, as the specific name is preoccupied, as already noted by 
Pilsbry; 2. substriatum Carpenter, originally described as a variety 
of the preceding species, but shown by more and better specimens 
to be quite distinct; H. cyclostoma Carpenter; FE. striulatum Car- 
penter; 4. minimum Philippi, and 2. luridum Dall. Phasianella 
perforata Reeve, not Philippi, P. petite Craven, P. munieri Vélain, 
and P. tessellata Potiez and Michaud, so far as may be judged from 
figures, also belong to Hulithidium. Phasianella punctata Carpenter, 
not Risso, appears to be a 7ricolia and may take the specific name 
of Carpentert. Apparently Carpenter referred it to H’ucosmia be- 
cause it 1s umbilicate, hke P. pulchella Adams, of the West Indies, 
but the species of Hulithidium are by no means all umbilicate. I 
have not seen P. phasianella C. B. Adams and P. strjulata Carpenter, 
which are referred to Hucosmia in Tryon’s Manual, 7 
