Mangelia costata ( Pennant 1777 )

Öztürk, Bilal, 2021, Mangelia (Gastropoda, Conoidea) species of the Turkish coasts with description of Mangelia vanaartseni sp. nov., Zootaxa 4933 (2), pp. 241-262 : 246-247

Mangelia costata ( Pennant 1777)

( Fig. 5 )

Murex costatus Pennant 1777: 1–154

Materials: 04.08.2000, Saros Bay, Aegean Sea , sandy mud, 82 m, 1 sh. ( ESFM-GAS/2000-165 ) ; 17.05.2001, Saros Bay, Aegean Sea , mud, 260 m, 1 spm ( ESFM-GAS/2001-40 ) ; 13.02.2002, Izmir Bay, Aegean Sea , sandy mud, 39 m, 1 sh. ( ESFM-GAS/2002-56 ) ; 07.03.2003, Çandarlı Bay, Aegean Sea , coralligineous, 50 m, 1 spm ( ESFM- GAS/2003-100 ) ; 14.09.2005, Iskenderun Bay, Levantine Sea , 0.5 m, sand, 1 sh. ( ESFM-GAS/2005-117 ) ; 23. 09.2005, Anamur, Levantine Sea , sandy mud, 100 m, 1 sh. ( ESFM-GAS/2005 /100) ; 08. 01.2009, Ildır Bay, Aegean Sea , sandy mud, 50 m, 1 spm + 3 sh. ( ESFM-GAS/2009-55 ) ; 16.09.2009, Ildır Bay, Aegean Sea , sandy mud, 49 m, 2 spm ( ESFM-GAS/2009-54 ) ; 01.04.2010, Izmir Bay, Aegean Sea , muddy sand, 74 m, 4 sh. ( ESFM-GAS/2010- 35 ) ; 06.06.2013, Dardanelles , mud with shell fragments, 50 m, 1 spm ( ESFM-GAS/2013-73 ) ; 08.06.2013, Sea of Marmara , mud, 50 m, 1 sh. ( ESFM-GAS/2013-80 ) ; 10.06.2013, Sea of Marmara , mud, 200 m, 1 sh. ( ESFM- GAS/2013-77 ) ; 11.06.2013, Sea of Marmara , mud, 200 m, 1 sh. ( ESFM-GAS/2013-78 ) ; 12.06.2013, Sea of Marmara , sandy mud with shell fragments, 100 m, 1 sh. ( ESFM-GAS/2013-19 ) ; 13.06.2013, Sea of Marmara , sandy mud, 100 m, 9 spm+ 1 sh. ( ESFM-GAS/2013-14 ) ; 13.06.2013, Sea of Marmara , sandy mud with shell fragments, 100 m, 12 spm + 4 sh. ( ESFM-GAS/2013-55 ) ; 14.06.2013, Sea of Marmara , sandy mud with shell fragments, 100 m, 4 sh. ( ESFM-GAS/2013-72 ) ; 15.06.2013, Sea of Marmara , mud, 200 m, 1 spm + 1 sh. ( ESFM-GAS/2013-79 ) ; 17.06.2013, Sea of Marmara , sandy mud with shell fragments, 50, 100 and 200 m, 5 spm+ 1 sh. ( ESFM-GAS/2013- 53 ) ; 19.06.2013, Sea of Marmara , mud with shell fragments, 50 m, 1 sh. ( ESFM-GAS/2013-74 ) ; 21.06.2013, Sea of Marmara , muddy sand with shell fragments, 50 m, 2 spm ( ESFM-GAS/2013-75 ) ; 23.06.2013, Sea of Marmara , sandy mud with shell fragments, 100 m, 3 sh. ( ESFM-GAS/2013-76 ) ; 24.06.2013, Sea of Marmara , sandy mud with shell fragments, 50 m, 1 spm ( ESFM-GAS/2013-52 ) ; 26.10.2014, Akköy, Aegean Sea , mud, 67 m, 1 spm ( ESFM- GAS/2014-47 ) ; 27.10.2014, G̹ll̹k Bay, Aegean Sea , sandy mud, 45 m, 2 spm ( ESFM-GAS/2014-38 ) ; 07.02.2015, Ildır Bay, Aegean Sea , sandy mud, 61 and 64 m, 2 spm ( ESFM-GAS/2015-19 ) ; 25.11.2016, Ildır Bay, Aegean Sea , sandy mud, 50 m, 2 spm ( ESFM-GAS/2016-21 ) ; 18.10.2017, Sarı Germe, Aegean Sea , mud, 54 m, 1 spm ( ESFM- GAS/2017-80 ) .

Remarks: The species has a multispiral protoconch and orthocline axial ribs on the teleoconch (on the body whorl 7–8 ribs). The spiral sculpture on the teleoconch whorls consists of incised striae only. In adult specimens the labrum is thickened. M. costata can easily be distinguished from other Mangelia species with similar shell shape by its incised (grooved) spirals between axial ribs on teleoconch whorls. In some studies carried out in the past, the junior name Mangelia coarctata ( Forbes 1840) has occasionally been used instead of Mangelia costata ( Pennant, 1777) (see the relevant note in WoRMS (WoRMS Editorial Board 2020).

Distribution: Eastern Atlantic Ocean and Mediterranean Sea ( Gofas et al. 2011). Turkish coasts: Levantine Sea, Aegean Sea and Sea of Marmara (Özt̹rk et al. 2014).

Figures

FIGURE 5: Mangelia costata: ventral (A, C, D, E, F) and dorsal (B) views of six specimens and protoconch (G) of specimen A (A=B= 7.6 mm, Sea of Marmara, 100 m; C=8.9 mm, Ildır Bay, 64 m; D=6.3 mm, Güllük Bay, 45 m; E=6.1 mm, Iskenderun Bay, 0.5 m; F=5.3 mm, Sea of Marmara, 100 m).