T. IBBARROLA, F. RUBIO, E. ROLÂN 
Novapex 13(2): 63-67, 10 juin 2012 
Some new information on Calliotropis ottoi (Philippin 1844) 
(Vetigastropoda: Seguenzioidea: Calliotropidae) 
Teodoro IBARROLA 
Instituto Espanol de Oceanografia, Vigo 
teo.ibaiTola@hotmail.com 
Federico RUBIO 
Pintor Ribera, 4-16 a 
46930 Quart de Poblet, (Valencia), Spain, 
federubio@ono.com 
Emilio ROLÂN 
Museo de Historia Natural, Campus Universitario Sur 
15782, Santiago de Compostela, 
erolan@emiliorolan.com 
KEYWORDS. Vetigastropoda, Calliotropidae, Calliotropis ottoi , synonymy, new data. 
ABSTRACT. Some specimens of the deep water species Calliotropis ottoi (Philippi, 1844) 
collected in Hatton Bank were studied. The shell, operculum, radula and soft parts are illustrated. 
The synonymy of this species with other taxa from the Atlantic is discussed. 
RESUMEN. Se estudian algunos ejemplares de la especie de aguas profundas Calliotropis ottoi 
(Philippi, 1844) recolectadas en el Banco Hatton. Se muestra concha, opérculo, radula y partes 
blandas. Se discute la sinonimia de esta especie con otros taxones del Atlântico. 
INTRODUCTION 
Calliotropis ottoi (Philippi, 1844) is a species from 
the Atlantic deep water, but there is a record of 
Martens & Thiele (1904) referring this species (and 
presenting the radula) from the Indian Océan. 
Hickman & McLean (1990) gave information on the 
soft parts, operculum and radula on the basis of the 
study of the American populations. 
Vilvens & Swinnen (2008: figs. 29-33) made a 
révision of the genus Calliotropis from central eastem 
Atlantic, showing the original figures of Calliotropis 
ottoi (Philippi, 1844) from the original description and 
from Martens & Thiele (1904) as well as a shell from 
lceland. Colman & Tyler (1988) gave information on 
the reprodution of this species. 
Some specimens of Calliotropis ottoi (Philippi, 
1844) were collected by rock dredge by the Spanish 
Océanographie Institute Ecovul/Arpa 2007 Survey on 
board R/V Vizconde de Eza on Hatton Bank area (NE 
Atlantic) at 59°17N, 17°33W in 962 meters. 
Some additional information on the morphology of 
this species is given in the présent work. 
SYSTEMATICS 
Remarks 
The genus Calliotropis Seguenza, 1803 has been 
placed in several subfamilies as Margaritinae, 
Angariinae, Monodontinae, Calliostomatinae and 
Solariellinae. According to Hickman & McLean 
(1990) it should be placed in Eucyclinae Koken, 
1897, in the tribe Calliotropini Hickman & McLean, 
1990. Following Bouchet & Rocroi (2005) and 
Vilvens (2007) this genus should be placed in the 
family Chilodontidae Wenz, 1938, in the subfamily 
Calliotropinae Hickman & McLean, 1990. Williams et 
al (2008), based on DNA sequences placed 
Calliotropidae Hickman & McLean 1990 in 
Seguenzioidea Verrill, 1884. 
Genus Calliotropis Seguenza, 1903 
Type species by original désignation: Trochus ottoi 
Philippi, 1844, Pliocène, Pleistocene, Italy. 
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