The Family Olividae — Burch and Burch 
Oliva bulbosa (Roding 1798). Mus. Bolteni- 
anum, p. 34, Porphyria bulbosa. 
It is to be regretted that the vagaries of the 
system permit no escape from abandoning the 
name O. inflata Lamarck 1811 under which 
this well known species has been recognized 
for generations. It is needless to add that al- 
most all of the following references to the 
literature are the work of authors who knew 
the species as O. inflata Lamarck. 
Both Roding (1798) and Lamarck (1811) 
refer to the same figures of Martini (Conchyl. 
Cab. II, tab. 47, figs. 507, 508). These figures 
represent specimens having undulating longi- 
tudinal stripes of brown. Hence we must ac- 
cept this form as typical. 
The form of this species is very character- 
istic: swollen gibbous growth, fasciole with a 
heavy callous ridge which is independent of 
the columellar plaits. This is the only species 
of Oliva with this character. 
Inasmuch as most of the large sets in collec- 
tions from various localities seem to contain 
specimens of almost all of the described forms, 
it seems futile to consider them in great detail. 
However, a few will be mentioned to give the 
references. 
bicingulata Lamarck 1811. Ann. Mus. Hist. 
Nat. 16:94. bicincta Lamarck 1822. 
Two revolving dark lines are present. 
fabagina Lamarck 1811. Ann. Mus. Hist. 
Nat. 16:94. 
The bands fuse and cover irregularly the greater 
portion of the shell. This form was figured by 
Marrat (1871) as O. crassa Martini. 
immaculata Vanatta 1915. Nautilus 29:68. 
This is the white albino form. In some collec- 
tions this form is labelled O. alba Dillwyn 
1817. 
inflata Lamarck 1811. Ann. Mus. Hist. Nat. 
16 : 310 . 
Specimens with only the small uniform bluish- 
gray spots. 
lacertina Quoy and Gaimard 1825. Voy. 
Uranie, p. 432, pi. 72, figs. 4, 5. 
This is a peculiarly banded color form of this 
species. 
519 
This species is generally distributed through- 
out the Indo-Pacific. We have large sets from 
Mozambique, Zanzibar, the Red Sea, Mauritius, 
Suez, Tanzania, Singapore, Indonesia, etc. 
Oliva paxillus Reeve 1840. Conchol. Icon., pi. 
21, sp. 56, a, b. 
The shell is cone shaped, yellowish white in 
color, smooth, with triangular brown markings 
farming interrupted bands, and spots beneath 
the sutures and on the fasciole. The interior 
of the aperture is sometimes two- or three- 
banded, but this is not a constant character. 
We are accepting the opinion of the late J. R. 
le B. Tomlin (1934), a very careful observer, 
who studied the types of all of the species 
involved. We also studied the types. All of 
them are in the British Museum (Natural His- 
tory). 
Omogymna was described by von Martens 
(1897) as a subgenus of Oliva, with O. paxillus 
Reeve as the type. Tryon (1883) pointed out 
that O. nitidula Duclos 1835 is preoccupied by 
nitidula Dillwyn 1817 (not Gmelin 1791)- 
Oliva ozodona Duclos 1835 is certainly not 
O. paxillus. On the other hand, Oliva sand- 
ivichiensis Pease I860 and Oliva thomasi Crosse 
1861 are both the same as O . paxillus Reeve. 
While not common, the species seems to be 
rather generally distributed. It seems to be the 
only species of Oliva from the Hawaiian Is- 
lands. 
We have specimens from various localities in 
the Indian Ocean, and from Okinawa, Guam, 
Marshall Islands, etc. 
Oliva duclosi Reeve 1850. Conchol. Icon., pi. 
19, sp. 44. 
The shell is orange-yellow, thickly reticulated 
with olive-brown, the spaces of the network 
being rather distant and sharply triangular. The 
columella and interior of the aperture are 
orange-yellow. 
It is difficult to know how so many authors 
have confused this species with O. paxillus 
Reeve 1850. O. duclosi has been reported from 
numerous Pacific localities, but it is more com- 
mon from Tahiti and neighboring islands. 
According to Ducros (1857), O. natalia 
