High cryptic diversity in the kleptoparasitic genus Hyalorisia Dall, 1889 (Littorinimorpha: Capulidae) with the description of nine new species from the Indo-West Pacific
Author
Fassio, Giulia
Author
Russini, Valeria
Author
Buge, Barbara
Author
Schiaparelli, Stefano
Author
Modica, Maria Vittoria
Author
Bouchet, Philippe
Author
Oliverio, Marco
text
Journal of Molluscan Studies
2020
Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen
2020-09-18
86
4
401
421
http://dx.doi.org/10.1093/mollus/eyaa028
journal article
10.1093/mollus/eyaa028
613998a5-1f0e-46b2-9141-a0bce996b557
4464900
6DBF9C90-3CAA-49F3-A9ED-9611D073840F
Hyalorisia galea
(
Dall, 1889
)
MOTU-1 (
Figs 3A
,
4A
,
7A, J
,
8C, D
)
Capulus
(
Hyalorisia
)
galea
Dall, 1889: 288
, pl. 14, fig. 3 [
off
Barbados
(
Blake stn 275
),
12°58 N
,
59°27 W
,
397 m
;
holotype
USNM 508724
].
Capulus galeus
(
sic
)—
Robinson, 1983: 9
.
Hyalorisia galea
(
Dall, 1889
)
—
Gracia Clavijo, Ardila & Díaz, 2004: 52
, fig. 22.
Rosenberg, Moretzsohn & García, 2009: 635
.
Daccarett & Bossio, 2011: 64
.
García, 2012: 34
, fig. 4.
Plesiothyreus galea
—
Christiaens, 1989: 22
.
Material examined
:
The
holotype
(only photographic images examined;
Fig. 8
A–C)
and other material (
MNHN-IM-2013-60195
,
MNHN-IM-2013-61224
,
MNHN-IM-2013-61525
and
MNHN-IM-2013-61536
)
.
COI-based diagnosis
: Ten diagnostic (autapomorphic) positions in alignment: 74(C), 145(T), 184(G), 208(G), 304(T), 418(A), 424(T), 601(C), 622(A) and 637(T).
Shell (data for
holotype
shown within parentheses)
: Size medium to large for the genus: length 13–25 (15.5) mm, width 9–21 (10.7) mm, height 2.5–8 (4.9) mm; thin, rounded, ellipsoidal or ovoidal, depressed; white shell surface with smooth yellowish periostracum; anterior margin rounded or very slightly angled; protoconch of 1– 1.2 whorls, diameter of nucleus
0.17–0.20 mm
; teleoconch smooth except for distinct commarginal growth ridges; apertural margin thin, interior glossy white; lamella narrow, width 0.14–2 (0.14) mm.
Soft parts (ethanol preserved)
: Head, cephalic tentacles, pseudoproboscis and mantle whitish.
Radula
: Taenioglossate, 2-1-R-1-2; marginal teeth sickle shaped; lateral teeth triangular, outer edge smooth or with few denticles, inneedge smooth or with one denticle; rachidian tooth triangular, highly denticulated on both edges.
Figure 8. A–C.
Holotype of
Capulus
(
Hyalorisia
)
galea
Dall, 1889
, USNM 508724, off Barbados.
D–F.
Holotype of
Capulus
(
Hyalorisia
)
tosaensis
Otuka, 1939
, Seto Marine Biological Laboratory, collected from Bay of Tosa, Japan.
G–I.
Syntype of
Capulus fragilis
E. A.
Smith, 1904
, NHMUK 1904.6.15.136, Laccadive Sea.
J.
Original figure of
Capulus fallax
S. V. Wood, 1842
(Wood, 1842: pl. 17, fig. 4a, b), Lower Pliocene of England.
K–N.
Holotype of
Capulus
(
Hyalorisia
)
nettlesi
J. E.
Robinson, 1983
, PRI 30058, Upper Eocene of Mississippi. Scale bars:
A–E
,
G–I
,
K–N
= 10 mm;
F
= 5 mm. Photo credits:
A–C
, USNM;
D–F
, Kyoto University (taken by Ryutaro Goto);
G–I
, NHMUK (taken by Harry Taylor);
K–N
, Paleontological Research Institution, Ithaca, NY.
Figure 9.
Bivalve hosts (
Propeamussium
spp.) with foot mark (black arrows) and notch (white arrows) of
Hyalorisia
.
A.
Propeamussium sibogai
, MNHN-IM-2007- 33954 (
L
= 46.7 mm), host of
H. nupta
n. sp.
(MNHN-IM-2007-34010).
B.
Propeamussium caducum
, MNHN-IM-2007-39095 (
L
= 17.8 mm), host of
H. kely
n. sp.
(MNHN-IM-2007-39091).
C, D.
Propeamussium dalli
, MNHN-IM-2013-60196 (
L
= 83 mm) with
H. galea
(MNHN-IM-2013-60195) still attached. Photo credits: MNHN; taken by Yves Terryn (
A
,
B
) and Laurent Charles (
C
). Scale bars = 5 mm.
Host
: Two individuals of
H. galaea
, MNHN-IM-2013-60195 and MNHN-IM-2013-61224, were attached to two examples of
Propeamussium dalli
(MNHN-IM-2013-60196 and MNHN-IM-2013-61223, respectively). Two other specimens of
H. galaea
(
MNHN-IM-
2013-61525 and MNHN-IM-2013-61536) were collected at stations where the only
Propeamussiidae
found were
P. dalli
and
Parvamussium cancellatum
(E. A. Smith, 1885)
.
García (2012
: fig. 4) reported
H. galea
attached to a living
Propeamussium
sp. from the
Gulf
of
Mexico
, off
Louisiana
.
Distribution
: From the Louisiana Slope to
Barbados
and the Caribbean coast of
Colombia
, at depths of
397–
835 m.