Coriophora novem ( Nowell-Usticke, 1969 )

Fernandes, Maurício Romulo & Pimenta, Alexandre Dias, 2020, Unraveling one of the ‘ Big Five’: update of the taxonomy of Triphoridae (Gastropoda, Triphoroidea) from Brazil, European Journal of Taxonomy 665 (665), pp. 1-170 : 42-45

publication ID

https://doi.org/ 10.5852/ejt.2020.665

publication LSID

lsid:zoobank.org:pub:836C9171-0849-4F4D-BC8D-90C2D9E8B9D1

persistent identifier

https://treatment.plazi.org/id/03E58799-FF95-AF58-FDDC-F9D6FC7DFA9F

treatment provided by

Valdenar

scientific name

Coriophora novem ( Nowell-Usticke, 1969 )
status

 

Coriophora novem ( Nowell-Usticke, 1969) View in CoL

Fig. 19 View Fig , 22H View Fig , 30 View Fig , 83 View Fig

Triphora novem Nowell-Usticke, 1969: 12 View in CoL , pl. 2 fig. 403.

Triphora novem View in CoL – De Jong & Coomans 1988: 49, pl. 34 fig. 236. — Moolenbeek & Faber 1989: 80. —

Boyko & Cordeiro 2001: 122. Triphora View in CoL sp. indet. A – Odé 1989: 111, fig. 6. Marshallora View in CoL sp. 1 – Leal 1991: 121, pl. 16 figs h–i. Mesophora aff. novem View in CoL – Rolán & Fernández-Garcés 1995: 11, figs 12–16. Mesophora novem View in CoL – Rolán & Fernández-Garcés 1995: 11, figs 8–11; 2007: 23, pl. 4 figs 1–5. — Redfern

2001: 67, pl. 33 fig. 282; 2013: 129, fig. 367. — Espinosa et al. 2007: 74; 2012: 257. — Lee 2009:

90. — Tunnell et al. 2010: 205. — Garcia & Lee 2011. — García 2016: 106. Coriophora novem View in CoL – Zhang 2011: 101, fig. 299 ( Mesophora novem ). — Özdikmen 2013: 255. — Fernandes et al. 2013: 12, figs 12, 23, 33. — Rolán & Fernández-Garcés 2015: 54, pl. 4 fig. i. — Hewitt & van Leeuwen 2017: 54. — Lamy & Pointier 2018: 284, pl. 91 fig. 4.

Material examined

Holotype

VIRGIN ISLANDS • AMNH 195419 View Materials .

Other material

BELIZE • 1 spec.; Carrie Bow Cay ; 16º47′30″ N, 88º04′42″ W; 27 May 1972; R. Houbrick leg.; USNM 879550 View Materials GoogleMaps .

BONAIRE • 1 spec.; Nukove ; 21 m; 14 Feb. 1998; MNRJ 32363 View Materials *.

BRAZIL – Amapá • 1 spec.; GEOMAR III st. 181; UFC-Labomar 1894 . – Rio Grande do Norte • 1 spec.; BPot 1-MR43; MNRJ 31542 View Materials * • 2 specs; BPot 1-MR45; MNRJ 31543 View Materials * • 1 spec.; BPot 2-MR45; MNRJ 31544 View Materials * • 1 spec.; 04º44′53″ S, 36º25′27″ W; depth 102–108 m; 23 May 2011; MNRJ 35118 View Materials GoogleMaps *. – Pernambuco • 1 spec.; Porto de Galinhas, Ipojuca ; 5 Oct. 1982; UFRPE . – Alagoas • 4 specs; Maceió; Jaraguá ; MORG 18264 37 specs; Maceió; Jaraguá ; MORG 33736 . – Bahia 3 specs; Salvador; Itapuã ; MORG 16385 4 specs; Salvador; Itapuã ; MORG 33727 9 specs; Salvador; Itapuã ; MORG 52615 1 spec.; Salvador; Itapuã ; MORG 33742 1 spec.; Salvador; Itapuã ; MZSP 133316 View Materials 1 spec.; Salvador, beach drift ; Apr. 1981; J.C. Tarasconi leg.; MNRJ 29366 View Materials * • 2 specs; Salvador; MZSP 64881 View Materials 1 spec.; 13º25′43″ S, 38º49′30″ W; depth 33 m; MNRJ 33085 View Materials GoogleMaps * • 5 specs; Ilhéus MNRJ 32374 View Materials * • 1 spec.; Ilhéus MNRJ 32975 View Materials * • 1 spec.; REVIZEE-Central C5-7R; MNRJ 18631 View Materials * • 1 spec.; Abrolhos ; Jan. 1985; MORG 29825 . – Espírito Santo • 1 spec.; 19º26′ S, 39º22′ W; depth 46 m; Oct. 2003; MNRJ 32134 View Materials GoogleMaps * • 1 spec.; 19º26′03″ S, 39º22′35″ W; depth 44 m; Oct. 2003; MNRJ 32838 View Materials *. – Vitória-Trindade Chain GoogleMaps 3 specs; REVIZEE-Central C2-22R; MORG 52620 1 spec.; Trindade Island; Mar. 1986; H. Bulhões leg.; MORG 24433 . – Campos Basin (Espírito Santo/Rio de Janeiro) 1 spec.; HAB 16-C4; MNRJ 18434 View Materials * • 1 spec.; HAB 16-H3; MNRJ 18622 View Materials * • 1 spec.; 22º42′ S, 40º40′ W; depth 110 m; 2006; MNRJ 18754 View Materials GoogleMaps * • 2 specs; 23º04′ S, 40º59′ W; 17 Dec. 2004; MNRJ 18963 View Materials GoogleMaps * • 1 spec.; 23º04′ S, 40º59′ W; 1 Apr. 2005; MNRJ 31110 View Materials GoogleMaps * • 1 spec.; 23º04′ S, 40º59′ W; MNRJ 32625 View Materials GoogleMaps *.

Remarks

Rolán & Fernández-Garcés (1995) and Fernandes et al. (2013) discussed the existence of two morphs under the name C. novem , one lighter in colour (like the holotype), the other darker. Typical shells of C. novem in southeastern Brazil belong to the darker morph ( Fig. 19A View Fig ), besides showing the median spiral cord of the teleoconch emerging between the seventh and ninth whorl ( Fernandes et al. 2013; Fernandes 2014). Some shells from northeastern Brazil are similar to the holotype, with a clearer coloration; a few of them are smaller and have smooth basal cords, a reduced anterior canal and the median spiral cord emerging early, even at the fifth whorl of the teleoconch ( Fig. 19C View Fig ).

Fernandes et al. (2013) indicated some inconsistencies related to the larval shell and radular formula in the generic assignment of C. novem in Mesophora Laseron, 1958 (synonym of Coriophora Laseron, 1958 ; see Marshall 1983 and Özdikmen 2013) by Rolán & Fernández-Garcés (1995). The discovery of a spiral microsculpture in the teleoconch of C. novem ( Fig. 19 View Fig F–G) is relevant, as it is very weak or usually absent in Mesophora ( Marshall 1983) but distinct in the related genus Mastonia Hinds, 1843 . Additionally, Mastonia typically has two spiral cords in the larval shell, just as in most part of the larval shell of C. novem ( Fig. 19J View Fig ), instead of the usual single cord in Mesophora ( Marshall 1983) . In contrast, C. novem possesses two basal cords ( Fig. 19H View Fig ) and a shell shape more similar to Mesophora , different from the bottle-shaped shell of Mastonia , which has only one basal cord ( Marshall 1983). Both genera are also distinguished by the more developed aperture and later emergence of the median spiral cord of the teleoconch in Mastonia ( Laseron 1958; Marshall 1983), but they share features such as the late median spiral cord and the strongly opisthocline orientation of axial ribs posteriorly to the body whorl. Except for C. novem , Coriophora / Mesophora and Mastonia are restricted to the Indo-Pacific.

According to Marshall (1983), the radulae of the type species of Coriophora , Mesophora , Mastonia and Iniforis Jousseaume, 1884 are quite similar. The radula of C. novem , illustrated in Rolán & Fernández- Garcés (1995) under the name Mesophora aff. novem , has combined features of those genera: the central tooth is similar to that of all except Mastonia , lateral teeth are more similar to those of Coriophora (in number and shape of cusps), and marginal teeth are only similar to those of Iniforis , distinct from the remaining genera because the central cusp is not elongated and thin. The radular formula of C. novem (12-1-1-1-12) is distinct from that of Mesophora (24-1-1-1-24), but identical to the type species of Mastonia ( Kosuge 1966) ; the radular formula of the type species of Coriophora and Iniforis is not known. Marshall (1983: 45) considered Mesophora (currently accepted as Coriophora ), Mastonia and Iniforis as closely related genera, warning that “it will be essential to compare radulae of many more species to ascertain the extent of variation within the groups”. The spiral microsculpture of Mastonia is quite different from that of other genera, consisting of distinct rows of small nodules covering all interspaces between the main spiral cords ( Fig. 20 View Fig ; Marshall 1983: fig. 20c), whereas C. novem exhibits a pattern more similar to that of some species of Iniforis (e.g., Rolán & Fernández-Garcés 2009: fig. 29), i.e., more discrete and resembling a peeled surface ( Fig. 19 View Fig F–G). As above-mentioned, C. novem has some features more similar to those of Coriophora , others to Mastonia ; it is preferred to maintain this species in the former genus, although pending future fine anatomical comparisons and molecular data. A proposition for a new genus exclusive to this western Atlantic species is possible, instead of tentatively maintaining it in Indo-Pacific genera.

Geographical records

USA: Florida ( Lee 2009), Louisiana ( Garcia & Lee 2002), Texas ( Tunnell et al. 2010); Gulf of Mexico ( Rosenberg et al. 2009); Bahamas ( Redfern 2001); Cuba ( Rolán & Fernández-Garcés 1995); Jamaica (Rosenberg 2009); Puerto Rico ( Lee 2009); Virgin Islands (type locality); Antigua ( Lamy & Pointier 2018); Guadeloupe ( Rolán & Fernández-Garcés 2015); Belize (this study); Aruba, Bonaire and Curaçao ( De Jong & Coomans 1988); Brazil: Amapá, Rio Grande do Norte, Pernambuco to Alagoas, Bahia (this study), Sulphur Bank, Vitória-Trindade Chain ( Fernandes et al. 2013), Espírito Santo to Rio de Janeiro (this study).

Bathymetric distribution

Depth: 2 m ( Rolán & Fernández-Garcés 1995) to 110 m (this study).

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Family

Triphoridae

Genus

Coriophora

Loc

Coriophora novem ( Nowell-Usticke, 1969 )

Fernandes, Maurício Romulo & Pimenta, Alexandre Dias 2020
2020
Loc

Triphora novem

Moolenbeek R. G. & Faber M. J. 1989: 80
De Jong K. M. & Coomans H. E. 1988: 49
1988
Loc

Triphora novem

Nowell-Usticke G. W. 1969: 12
1969
Loc

Triphora

Odé 1989: 111
Leal 1991: 121
Loc

Mesophora aff. novem

Rolán & Fernández-Garcés 1995: 11
Rolán & Fernández-Garcés 1995: 11
Redfern
Loc

Coriophora novem

Zhang 2011: 101
Özdikmen 2013: 255
Fernandes et al. 2013: 12
Rolán & Fernández-Garcés 2015: 54
Hewitt & van Leeuwen 2017: 54
Lamy & Pointier 2018: 284
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