Crepis longipes Jullien, 1882

Souto, Javier, Berning, Björn & Ostrovsky, Andrew N., 2016, Systematics and diversity of deep-water Cheilostomata (Bryozoa) from Galicia Bank (NE Atlantic), Zootaxa 4067 (4), pp. 401-459 : 412-413

Crepis longipes Jullien, 1882

( Figs 18–22 , Table 6 )

Crepis longipes Jullien, 1882: 522 , pl. 17, figs 60, 61; Prenant & Bobin 1966: 366, fig. 119; d’Hondt 1973a: 367; 1974: 29; Reverter-Gil et al. 2011: 2, figs 1-4; Souto et al. 2014: 136, fig. 3C, D.

Material examined. MNCN 25.03/3932, locality DW110; MNHN IB- 2013-622, locality DW117.

Remarks. Reverter-Gil et al. (2011) recently redescribed type and other material of Crepis longipes from the Iberian continental shelf. Although the authors stated that one of the Travailleur stations from which Jullien (1882) originally recorded the species was Galicia Bank, this was a mistake owing to a wrong interpretation of the geographic position. During the Travailleur campaign the longitude was referenced to the Paris meridian, which nowadays makes it necessary to correct the original reading to the Greenwich meridian ( Ryland 1969). After corrections, that station is situated on the continental slope of northern Iberia. Nevertheless, we are able to demonstrate here that C. longipes does, indeed, occur on Galicia Bank, which marks the first record of this species off the continental shelf.

SD, standard deviation; N, number of measurements

Souto et al. (2014) described the ovicell and operculum of C. longipes for the first time; both characters were also observed in the specimens from Galicia Bank ( Figs 18, 19, 22 ), and are identical with the previously recorded material. Ovicells are terminal, the ooecium being formed by a distal kenozooid that is concealed from frontal view, and which distally buds the caudal part of the next autozooid in a row.

Several specimens were found at four Galicia Bank localities ranging from 770 to 860 m depth. The colonies mainly encrust coral skeletons but also rocks, while one colony was found on a piece of slightly lithified foraminiferal sand.

Figures

FIGURES 18 – 22. Crepis longipes: 18, general view of colony (MNCN 25.03 / 3932); 19, unbleached autozooids with opercula and frontal membrane (MNHN IB- 2013 - 622); 20, frontal view of an autozooid (MNCN 25.03 / 3932); 21, lateral view of an autozooid (MNCN 25.03 / 3932); 22, ovicellate zooid (MNHN IB- 2013 - 622).

Tables

TABLE 6. Measurements (in mm) of Crepis longipes.

	Mean	SD	Minimum	Maximum	N
Autozooid length	0.529	0.0342	0.465	0.592	14
Autozooid width	0.246	0.0195	0.219	0.282	14
Opesia length	0.181	0.0060	0.175	0.191	5
Opesia width	0.155	0.0103	0.146	0.172	5
Cauda length	0.670	0.4526	0.246	1.916	13
Cauda width	0.037	0.0071	0.023	0.049	16
Ooecium length	0.125				1
Ooeciumwidth	0.235				1