Vejdovskybathynella caroloi, Camacho, 2007
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publication ID |
https://doi.org/ 10.1080/00222930701770760 |
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persistent identifier |
https://treatment.plazi.org/id/03C687DE-5951-1D13-FE1F-C7A5D34FA536 |
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treatment provided by |
Carolina |
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scientific name |
Vejdovskybathynella caroloi |
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sp. nov. |
Vejdovskybathynella caroloi n. sp.
( Figures 5 View Figure 5 , 6 View Figure 6 )
Material examined
Type locality. Molino Cave , Matienzo (Cantabria, Spain) (coordinates X: 451610, Y: 4796220, Z: 165) (11 March 2003, four males and four females collected). The holotype is a male and the type series contains three males and four females ( MNCN 20.04 About MNCN /7792). Additional population: Cueva Fresca (cave), Asón (Cantabria, Spain); coordinates X: 451390, Y: 4785780, Z: 410 (7 June 2002, five males, 10 females, and six juveniles collected) .
Description
Body. Total length of the holotype (male) 0.61 mm and paratype 0.60 mm. The sizes of the species in the different populations found are shown in Table IV. All drawings are of the holotype (male) and the allotype (female, Th. VIII and Md.) .
A. I ( Figure 5A View Figure 5 ). Seven segments; length of first three segments similar to the first of the other four segments; setation as in Figure 3A View Figure 3 ; on segments 6 and 7 three aesthetascs. A. I slightly longer than the antenna.
A. II ( Figure 5B View Figure 5 ). Slightly shorter than the antennule; seven segments; setal formula: 0/ 1+exp/2+0/1+0/0+0/2+2/4; exopod similar in size to segment 3, without a ventromedial seta and with two apical setae, one of these a bifurcated sensory seta.
Labrum ( Figure 5C View Figure 5 ). Smooth.
Paragnath ( Figure 5D View Figure 5 ). Lengthened and with a rounded projection in the distal part, and with setation.
Md. ( Figure 5E, F View Figure 5 ). Palp with three segments, terminal segment with two claws with setation as shown in the figure, and first two segments thick and with rounded aspect; in the females segments 1 and 2 are normal, the second longer, without expansions, and claws of segment 3 equal and with few setae. Masticatory part ( Figure 5F View Figure 5 ): pars molaris with two main teeth, the first (the nearest to processus incisivus accessorius) bidentate, the second tooth with three small teeth (secondary formations) on each side; incisor process (pars incisiva) of two teeth.
Mx. I ( Figure 5G View Figure 5 ). Proximal endite with four setae; distal endite with six teeth, five with spines (denticles), and with three plumose setae on the outer margin.
Mx. II ( Figure 5H View Figure 5 ). Four segments; setal formula 6, 5, 7, 4.
Th. I–VII ( Figure 6A–G View Figure 6 ). Th. I ( Figure 5A View Figure 5 ) smaller than others; Th. II ( Figure 6B View Figure 6 ) to V ( Figure 6E View Figure 6 ) similar in size and Th. VI ( Figure 6F View Figure 6 ) to VII ( Figure 6G View Figure 6 ) longer than others. Th. I without epipod; coxa with a long plumose seta; basipod with two plumose setae and one smooth seta. Basipod of Th. II with two setae and with only one seta on the rest of the thoracopods. Exopod with one segment on all thoracopods, shorter than the endopod in all cases; with five barbed setae. Endopod with four segments in all thoracopods, setal formulae: Th. I: 2+0/2+1/2+0/4; Th. II: 2+0/2+1/2+0/4; Th. III: 2+0/2+1/2+0/3; Th. IV: 1+0/1+1/1+0/3; Th. V: 0+0/1+1/1+0/3; Th. VI: 0+0/0+1/0+0/2; Th. VII: 0+0/0+1/0+0/2.
Male Th. VIII ( Figure 5K, L View Figure 5 ). Outer lobe (O. lb.) very large, the distal edge almost reaches the edge of the frontal projection; frontal projection (Fr. prj.) with transverse circular section; vertical basipod (Bsp.) not very long and almost square; frontal crest (Fr. crt.) of basipod prominent and with a very evident spur (S. fr. crt.); exopod heavy, with a spur (see Figure 5K View Figure 5 ), with four setae on the distal end. Very small endopod, one-seventh the size of the exopod, with two smooth terminal setae.
Female Th. VIII ( Figure 5M View Figure 5 ). Coxa with one smooth lateral seta; large epipod, longer than basipod; endopod singly segmented with two plumose apical setae, one of these longer than the other; exopod longer than the endopod, and with two apical smooth setae of different lengths.
First pleopods ( Figure 5N View Figure 5 ). Two segments, first segment with one seta; second segment with five setae.
Uropods ( Figure 6I View Figure 6 ). Sympod slightly longer than endopod, twice longer than broad and with four spines, distal longer than the others; endopod twice as long as the exopod, with three strong claws, the most distal slightly longer, terminally with two setae (one of these very long) and with two shorter ones dorsolaterally; exopod with two terminal and two medial setae.
Furcal rami ( Figure 6H View Figure 6 ). Almost square, bearing five spines; second spine is four times longer than the other four spines, which are all almost of the same size including the dorsal spine.
Etymology
The species name is derived from Carolo, who has worked for more than 23 years with the author and is a best friend, sampling companion, and husband to the author.
Remarks
Vejdovskybathynella caroloi n. sp. has a combination of unique characters ( Tables V, VI); it has a unique male thoracopod VIII, with a spur in the exopod that is a feature otherwise unknown to the genus (see Table VI); the basipod is small and the outer lobe and outer protuberance are similar in size; the frontal projection is as short as the basipod; the endopod is the smallest of the whole genus. The presence of three aesthetascs on segments VI and VII of the antennule also was not previously known in this genus; the form of the segments of the mandibular palp of the mandible of the male are unique; the setal formula of the endopod of all thoracopods is unique (see Table V), as having three setae on the basipod of Th. I only occurs in the French species, whereas the Spanish species only has two ( Table V) and Th. VI–VII are like those of V. pascalis n. sp.; the distal spine of the sympod of the uropod is larger than the others, whereas in the rest of the species they are all equal in size. The setal formula of A. II is similar to the French species. The male is medium sized and the female is large.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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