Deeveya exleyi Kornicker & Iliffe 1998

Kornicker, Louis S., Iliffe, Thomas M. & Harrison-Nelson, Elizabeth, 2007, Ostracoda (Myodocopa) from Anchialine Caves and Ocean Blue Holes, Zootaxa 1565 (1), pp. 1-151 : 76-79

publication ID	https://doi.org/ 10.11646/zootaxa.1565.1.1
publication LSID	lsid:zoobank.org:pub:A2CDD9CB-CA5E-418B-A471-9EEFDC5CCF16
DOI	https://doi.org/10.5281/zenodo.5095896
persistent identifier	https://treatment.plazi.org/id/2A5087FF-3E7D-FC43-3A91-FEE1FBA06ACC
treatment provided by	Felipe
scientific name	Deeveya exleyi Kornicker & Iliffe 1998
status

Treatment

Figs. 41 View FIGURE 41 , 42 View FIGURE 42

Deeveya exleyi Kornicker & Iliffe 1998: 53 , figs. 37–42.—Kornicker et al. 2002: 23.

Holotype. USNM 194269 About USNM , adult female.

Type locality. Oven Rock Cave , Great Guana Cay, Exuma Cays, Great Bahama Bank .

Material. Holotype plus USNM 1021450 About USNM , A-4 instar (sex unknown) on slide.

Distribution. Great Bahama Bank: type locality and Norman’s Pond Cave, Norman’s Pond Cay, Exumas.

Supplementary description of adult female (Correction). Kornicker & Iliffe (1998: 57) described the first endopod segment of the mandible as having two posterior bristles. Examination of the holotype revealed that it has only one posterior bristle as shown in their illustration ( Kornicker & Iliffe 1998: fig. 39f).

Description of A-4 instar (sex unknown) ( Figs. 41 View FIGURE 41 , 42 View FIGURE 42 ). Carapace oval in lateral view with linear dorsal margin ( Fig. 41 a View FIGURE 41 ). Right valve with small glandular process at posterior end of dorsal margin (not shown).

Ornamentation: Surface in transmitted light with clear round spots ( Fig. 41 c View FIGURE 41 ). Shell between clear spots with abundant fine hair-like striae. Single lateral bristle projecting from midheight of posterior margin; 1 divided lateral bristle anterior to midlength of ventral margin, and 2 single anteroventral bristles (not shown).

Selvage: Broad infold along anterior, ventral, and posterior margins. Broad lamellar prolongation with smooth outer edge along anterior, ventral, and dorsal margins.

Central adductor muscle attachments ( Fig. 41 b View FIGURE 41 ): Consisting of a cluster of about 9 attachments.

Carapace size (length, height in mm): USNM 1021450, 0.66, 0.55.

First antenna ( Fig. 41 d,e View FIGURE 41 ): 1st segment with spines in distal ventral corner. 2nd segment with 1 dorsal bristle. 3rd and 4th segment fused, but slight indentation on dorsal margin indicates place of separation; 3rd segment with 1 ventral bristle; 4th segment with 1 short dorsal bristle. 5th segment with minute terminal ventral pointed nub (visible with oil immersion lens). 6th segment bare. 7th segment with short dorsal a-bristle and long ventral c-bristle. 8th segment with long d-, e-, and f-bristles, and short g-bristle. 1st and 2nd segments forming large angle.

Second antenna: Protopodite bare. Exopod with segment 1 partly divided into 2 parts, with small medial bristle near ventral margin. Segments 2 to 8 with long ventral bristle. Segment 9 with 2 bristles (1 short, 1 medium length). Endopod ( Fig. 41 e,f View FIGURE 41 ): 1st segment with 1 dorsal bristle; 2nd segment with short f-bristle and long g-bristle; 3rd segment fused to 2nd segment, with long h-, i-, and j-bristles.

Mandible ( Figs. 41 g –k View FIGURE 41 , 42 a View FIGURE 42 ): Coxa endite with proximal and distal sets of teeth separated by space ( Fig. 41 g,h View FIGURE 41 ): proximal set with about 4 stout cusps, surface between and adjacent to cusps with slender spines; stout pointed tooth between proximal and distal sets of teeth with spinous bristle adjacent to tooth. Distal set of teeth comprising 2 flat teeth, each tooth with 3 or 4 cusps (obscured); stout bristle between inner tooth and stout pointed tooth. Basis with 1 long slender bristle and 1 short bristle near base of endopod ( Fig. 41 i,j View FIGURE 41 ), and 2 stout filamentous plumose dorsal bristles ( Fig. 42 a View FIGURE 42 ). Basis endite with single anterior bristle; posterior margin with hairs and 2 short distal bristles (distal of these tubular) ( Fig. 41 i View FIGURE 41 ); lateral side with 2 bristles (none entwined); ventral edge of endite with 5 terminal cusps (posterior of these smaller than others and set back from terminal edge), and 1 lateral tooth set back from edge ( Fig. 41 i View FIGURE 41 ). Endopod ( Fig. 41 j,k View FIGURE 41 ): 1st segment with 1 terminal dorsal bristle; 2nd segment with 2 or 3 bristles (2 dorsal (1 claw-like)), none or 1 ventral; 3rd segment with 4 bristles (1 very long)).

Maxilla ( Fig. 42 b View FIGURE 42 ): Endite I with 7 bristles; endite II with 6 bristles; endite III with 5 bristles. Coxa with plumose dorsal bristle. Basis with 2 terminal ventral bristles. Endopod: 1st segment with 2 or 3 bristles (1 or 2 anterior, 1 posterior). 2nd segment with 1 claw-like bristle, 1 long stout spinous bristle, and 3 slender bristles (at least 1 tubular).

Fifth limb ( Fig. 42 c–f View FIGURE 42 ): Epipod with plumose bristles forming 3 groups, with 3 bristles in each group on mounted specimen, but some bristles probably missing (about 13 counted on specimen prior to mounting, but view obstructed). Precoxa and coxa with total of 1 claw and 12 bristles (4 bristles tubular, 1 bristle nub-like, spinous) ( Fig. 42 e View FIGURE 42 ). Basis with 4 bristles. Exopod represented by 2 bristles (1 long bare, 1 plumose). Endopod: 1st segment with 2 distal ventral bristles; 2nd segment with 2 long slender, somewhat clawlike bristles, and 1 short slender bristle.

Sixth limb ( Fig. 42 f–h View FIGURE 42 ): Epipod fragmented, with plumose bristles. Precoxa and coxa without bristles. Exopod represented by small lobe with 3 long bristles. Endopod with 2 segments: 1st segment bare; 2nd segment with 2 terminal bristles (1 long, 1 short). Terminal segment not reaching past terminal segment of 5th limb ( Fig. 42 f View FIGURE 42 ).

Seventh limb: Absent.

Furca ( Fig. 42 i,j View FIGURE 42 ): Each lamella with 4 spinous claws followed by small triangular process fused to lamella. Claws separated from lamella by suture. Small projecting glandular process midway between claws 1 and 2. Long unpaired bristle present posterior to lamellae.

Bellonci Organ ( Fig. 41 e View FIGURE 41 ): Well developed, bifurcate distally, branches taper to point.

Upper lip ( Fig. 42 a View FIGURE 42 ): Anterior margin of body near upper lip with projecting rounded process on each side; anterior tip of lip with chevron-like processes. Lower lip triangular ( Fig. 42 k View FIGURE 42 )

Gut content: Specimen with 2 food pellets in gut (length 0.19 mm, width 0.11 mm) ( Fig. 42 j View FIGURE 42 ). Each pellet with numerous closely packed amber-colored narrow strips, a few with nodes suggesting teeth, one terminating in a claw ( Fig. 42 l View FIGURE 42 ). The strips appear to be the skeleton of one or more invertebrates and indicate that the species is either a carnivore or scavenger.

Remarks. The A-4 instar from Norman’s Pond Cave is referred to D. exleyi because 3 other anchialine ostracodes collected in that cave have also been collected in Oven Rock Cave, the type locality of the species. Each cave is on a different cay in the Exumas. This is the first report of the genus in Norman’s Pond Cave. An A-4 instar of the species has not previously been described; the morphology of the present specimen is consistent with what would be expected for an A-4 instar collected at the type locality.

Kingdom	Animalia
Phylum	Arthropoda
Class	Ostracoda
Order	Halocyprida
Family	Thaumatocyprididae
Genus	Deeveya