20, 2 
16. 
17a. 
17b. 
18a. 
18b. 
Fig. 1a. 
1b. 
wo ne 
oan RP 
9, 
Dickerson: Review of Philippine Paleontology 225 
Nassa quadrasi Hidalgo; x 8%. Locality 8x. 
Nassa thersites leptospira (Bruguiere) ; x %. Locality 8x. 
Nassa thersites leptospira (Bruguiere); x %. Front view. Lo- 
cality 8x. 
Nassa thersites immersa Carpenter; x %. Back view. Locality 
8x. 
Nassa thersites immersa Carpenter; x 5%. Front view. Locality 
3x. 
. Nassa costellifera A. Adams; X %. Locality 11x. 
PLATE 4. V1GO GROUP, MIOCENE 
- Natica albumen Lamarck; x %. Locality 2x. 
. Natica sp.; <X 4%. Locality 9x. 
. Natica spadicea Reeve; X %. Locality 2x. 
. Natica spadicea Reeve; x %. Locality 11x. 
. Natica spadicea Reeve, operculum; x %. Locality 11x. 
. Natica lacernula D’Orbigny; x %. Locality 8x. 
. Natica mamilla Lamarck; x 5. Locality 2x. 
. Natica cumingiana Recluz. Locality 11x. 
. Nerita funiculata Reeve; x 5. Locality 2x. 
. Neritina cf. squarrosa Recluz; x &%. Locality 5x. 
. Oliva cf. utriculus Gmelin; x %. Locality 3x. 
. Phos roseatus Hinds; x %. Locality 3x. 
. Pyrula gigas K. Martin; x %. Locality 5x. 
. Pyramidella sp. Locality 4x. 
. Ranella subgranosa Beck; x %. Bureau of Science locality F290. 
Sibod Creek, Uling district, Cebu. The lower tip of the canal 
is broken off, giving the form a more robust appearance than 
the Recent specimens in the Quadras collection. 
. Ranella subgranosa Beck; x %. Locality 2x. 
. Ranella tuberculata Broderip; x %. Locality 2x. 
. Ricinula spectrum Reeve; X 2. Locality 4x. 38 
. Rimella agusana, (Smith); x %. Locality 10x, Vigo shale, Sili 
Creek, at seepage, southern end of Bondoc Peninsula, Tayabas 
Province, Luzon. This species was originally described as a 
Turris, but better material necessitates its reference to another 
genus. 
PLATE 5. Vico GROUP, MIOCENE 
Rostellaria fusus Linneus; x %. Locality 4x. 
Rostellaria fusus Linneus; X 4%. Locality 4x. The upper whorls 
of the spire are decorated in contrast to the smooth whorls below. 
. Rostellaria crispata Kiener; X 1. Locality 3x. ; 
. Strombus canarium (Linneus); X %. Bureau of Science locality 
F290. 
. Strombus gendinganensis K. Martin; x 1. Locality 3x. 
. Strombus sp. a; x %. Locality 4x. 
. Strombus swainsoni Reeve; X 5%. Locality 2x. j 
. Strombus dentatus sonde (Lamarck) K. Martin; x 1. Locality 3x. 
Strombus cf. fusus K. Martin; xX %. Locality 9x. 
Turris flavidula Lamarck; x %. Locality 2x. 
