PROSOBRANOHIATA, SCAPHOPODA. Moll. 71 
t Trepospira, n. g., type Pleurotomaria sphcerulata , Conrad; Ulrich & 
Scofield, Geol. Surv. Minnesota, iii, pt. 2, p. 957. 
+Trochonematid;e, n. fam.; Ulrich & Scofield, Geol. Surv. Minnesota, 
iii, pt. 2, p. 1043. 
t Turritoma, n. g., type Murchisonia acrea , Billings; Ulrich, Geol. Surv. 
Minnesota, iii, pt. 2, p. 959. 
DOCOGLOSSA. 
AcMjEIDAE and PATELLIDiE. 
Acmcea euglypta, Azores; Dautzenberg & Fischer, Mem. Soc. zool. 
France, x, p. 181, fig. : n. sp. 
\ Archinacella, n. g., type A. power si, n. sp.; Ulrich & Scofield, Geol. 
Surv. Minnesota, iii, pt. 2, pp. 821 & 828. 
Ilelcion pellucidum , peripheral glandular organ; Boutan, Arch. Zool. 
exp., v, pp. 437-482, figg. 
t Helcionopsis, n. g., type H. Jissicostata , n. sp.; Ulrich & Scofield, Geol. 
Surv. Minnesota, iii, pt. 2, pp. 821 & 826. 
III. SCAPHOPODA. 
Bathoxiphus , Pilsbry & Sharp, now sub-gen. of Dentalium for D. emiculus ; 
Pilsbry in Tryon (475) xvii, p. 121. 
Cadulus hepburni , p. 12, tolmiei, p. 13, Vancouver Island; Ball (110), 
figg. : C. senegalensis , Senegal, p. 3, strangulatus , Gulf of Gascony, 
monterosatoi, Cape Finist&re, artatus (Jeff. MS), Gulf of Gascony, 
p. 4 ; Locard, Echange, xiii : n. spp. 
Coccodentalium , n. sub-gen. of Dentalium , for D. radula , Schrot.; Sacco 
( 403), pt. xxii, p. 110. 
Compressidens , Pilsbry & Sharp, new sub-gen. of Dentalium for D. pressum , 
S. & P., n. n.; Pilsbry in Tryon (475) xvii, p. 123. 
Dentaliidce , monograph by Pilsbry in Tryon (475) xvii. 
Dentalium semivestitum (P. Fisch. MS), p. 9, scamnatum (P. Fisch. MS), 
ex uberans, milne-edwardsi , W. Africa, p. 10 ; Locard, Echange, xiii : 
D. letsonce , Sharp & Pilsbry, Philippines, p. 4, neohexagonum , S. & P., 
California, p. 19, picteti , Desh. MS, West Indies (?), p. 22, agassizi, 
S & P., California, p. 26, dipsycha , S. & P., hab. unknown, p. 33, 
jischeri , Stearns, California, p. 36, liodon , P. & S., West Indies, p. 107, 
cequatorium , P. & S., Ecuador, p. 112, watsoni , S. & P., California, 
p. 113, dalli, P. & S., West Coast of America, p. 114, innumerabile , 
P. & S., Panama Bay, etc., p. 119, longum , S. & P., hab. unknown, 
p. 120, brevicornu, S. & P., Galapagos Islands, simplex , P. & S., Oregon, 
p. 125; Pilsbry in Tryon (475), xvii, figg.: D. conspicuum , Mekran 
Coast; Melvill, Mem. Manchester Soc. xli, No. 7, p. 21, fig. : n. spp. 
Dentalium cheverti , S. & P., n. n septemcostatum, Brazier, non Abich, 
p. 9; cookei , S. & P., n. n ., — acus, Cooke, non Eichwald, p. 29; 
liungerfordi, S. & P., n. n., = compressum, Sby., non auct., p. 84; 
sicidum , Desh. MS, n. n., -politum, Costa, non L., p. 107 ; pressum , 
S. & P., n. n = compressum, Watson, non D’Orb., p. 124; stenoschizum , 
P. & S., n. n .^—translucidum, Sby., non Desh., p. 128; Pilsbry in 
Tryon (475) xvii. 
Episiphon , Pilsbry and Sharp, new sub-gen. of Dentalium , for D. sowerbyi 
and others; Pilsbry in Tryon (475) xvii, p. 117. 
Gryptacme, Pilsbry & Sharp, new sub-gen. of Dentalium for D. sericatum 
and others; Pilsbry in Tryon (475), xvii, p. 85. 
