Platytyphlops bamberi, Gerken, 2018

Gerken, Sarah, 2018, The Lampropidae (Crustacea: Cumacea) of the World, Zootaxa 4428 (1), pp. 1-192 : 141-144

publication ID

https://doi.org/ 10.11646/zootaxa.4428.1.1

publication LSID

lsid:zoobank.org:pub:2419A7F0-5AED-47EC-86BB-06AADB2A4BD9

DOI

https://doi.org/10.5281/zenodo.3799209

persistent identifier

https://treatment.plazi.org/id/03FD87BA-FF60-2EA4-64FF-FEF8D0CCC9DA

treatment provided by

Plazi

scientific name

Platytyphlops bamberi
status

sp. nov.

Platytyphlops bamberi View in CoL n. sp.

( Figs 54–55 View FIGURE 54 View FIGURE 55 )

Type material. Holotype: subadult female, NIWA 120051 View Materials , 44°30’S, 174°18.6’E, 760 m, NZOI station S147, Chatham Rise , New Zealand GoogleMaps . Paratype: subadult female, dissected, NIWA 120052 View Materials , collected with holotype GoogleMaps .

Diagnosis. Carapace without lateral ridges, thickly covered in large spines dorsal of marginal carina, with sparser smaller spines ventral of marginal carina, marginal carina dentate, ridge absent on pseudorostrum; eyelobe without lenses or timidities, with medial line of spines. Antennule article 1 not expanded; accessory flagellum equal to main flagellum length. Telson 0.7 uropod peduncles, with 3 terminal setae, central seta short. Uropod peduncles with 15 medial setae. Adult male unknown.

Description. Holotype subadult female, NIWA 120051; paratype subadult female, NIWA 120052.

Subadult female, 11.8 mm. Carapace thickly covered with spines dorsal of marginal carina, with smaller sparser spines ventral of marginal carina, posterior dorsolateral expansion, sharp dorsal crest on frontal lobe continuing onto eyelobe; pseudorostral lobes 0.3 carapace length; eyelobe 0.07 carapace length, with medial line of spines; carapace 1.4 length of pereonites; pereonites with spines dorsally; pleonites with dorsal small spines ( Fig. 54 View FIGURE 54 A–B).

Paratype subadult female, NIWA 120052 View Materials .

Antennule peduncle article 1 subequal to articles 2 and 3 together, margin with spines, with plumose setae; article 2 1.3 article 3 length, without spines, with plumose setae; article 3 with plumose setae; main flagellum of 7 articles, shorter than peduncle, with simple setae and 2 small aesthetascs terminally; accessory flagellum of 4 articles, with simple setae ( Fig. 54C View FIGURE 54 ).

Antenna of 4 articles; article 1 without spines, unarmed; article 2 with 6 pappose and 1 simple setae; article 3 with 2 pappose setae; article 4 2.0 length of article 3, with 2 small simple setae terminally ( Fig. 54D View FIGURE 54 ).

Mandible navicular, with 11 microserrate setae medially ( Fig. 54E View FIGURE 54 ).

Maxillule with 2 endites; outer endite with 8 stout setae; inner endite with 3 simple and 1 tricuspid setae; palp with 2 setae ( Fig. 54F View FIGURE 54 ).

Maxilla not seen.

Maxilliped 1 basis produced distally as broad lobe, medial margin with 3 pappose and 2 hook setae, 1 stout seta distally; ischium absent; merus with 2 plumose setae laterally; carpus 1.3 merus length, with plumose and comb setae medially, plumose seta laterally; propodus 0.8 carpus length, with plumose setae; dactylus 0.6 propodus length, with simple setae ( Fig. 54G View FIGURE 54 ).

Maxilliped 2 basis equal to all other articles together, medial margin with 4 pappose setae, distal margin with 2 pappose and 3 plumose setae; ischium unarmed; merus 3.0 ischium length, with plumose seta laterally; carpus 2.5 merus length, with plumose setae medially, plumose seta laterally; propodus 0.7 carpus length, with plumose and simple setae; dactylus 0.5 propodus length, with simple setae terminally ( Fig. 55A View FIGURE 55 ).

Maxilliped 3 basis 0.8 all other articles together, medial margin with plumose setae, lateral margin with simple setae, with 4 plumose setae at distal corner; ischium 0.06 basis length, unarmed; merus 2.7 ischium length, with plumose seta medially, 2 plumose setae laterally; carpus 3.1 merus length, with sparsely plumose setae medially, 2 plumose setae laterally; propodus 0.7 carpus length, with sparsely plumose setae medially, plumose setae laterally; dactylus 0.4 propodus length, with 4 simple setae terminally; exopod equal to basis length, basal article with 2 plumose setae, flagellum with plumo-annulate setae ( Fig. 55B View FIGURE 55 ).

Pereopod 1 broken, basis with plumose setae on margins; exopod 0.7 basis length, basal article with 5 plumose setae, flagellum with plumo-annulate setae ( Fig. 55C View FIGURE 55 ).

Pereopod 2 basis shorter than all other articles together, with 12 plumose setae; ischium 0.06

basis length, unarmed; merus 3.0 ischium length, with 1 stout microserrate, 1 plumose and 2 simple setae; carpus 3.2 merus length, with 13 microserrate and 1 plumose setae; propodus 0.2 carpus length, with simple seta; dactylus broken, with simple setae; exopod 0.6 basis length, basal article with plumose seta, flagellum with plumo-annulate setae ( Fig. 55D View FIGURE 55 ).

Pereopod 3 basis 1.5 all other articles together, with 2 plumose setae; ischium 0.06 basis length, with plumose seta; merus 4.8 ischium length, with 5 plumose setae; carpus 0.5 merus length, with 2 plumose and 2 annulate setae; propodus 0.8 carpus length, with annulate seta; dactylus 0.7 propodus length, with 2 simple and 1 stout microserrate setae terminally; exopod rudimentary, 0.09 basis length, of 2 articles with 2 simple setae ( Fig. 55E View FIGURE 55 ).

Pereopod 4 broken, not figured.

Pereopod 5 basis 1.3 all other articles together, with 3 simple setae; ischium 0.1 basis length, with 2 plumose setae; merus 1.6 ischium length, with simple seta; carpus 1.3 merus length, with1 simple and 2 annulate setae; propodus 0.7 carpus length, with annulate seta; dactylus 0.6 propodus length, with 2 simple and 1 stout microserrate setae terminally ( Fig. 55 View FIGURE 55 F–G).

Telson 1.4 length of pleonite 6, with 3 lateral setae with single subterminal setule, 3 simple terminal setae, central seta short, outer pair more than twice length of central seta ( Fig. 55H View FIGURE 55 ).

Uropod peduncles 2.0 pleonite 6 length, 1.4 telson length, with 15 medial setae with single subterminal setule. Uropod endopod of 3 articles, 1.1 peduncle length; article 1 4.1 length of article 2, with 13–17 medial setae with single subterminal setule; article 2 with 5 medial setae with single subterminal setule; article 3 0.8 article 2 length, with 4 medial setae with single subterminal setule. Uropod exopod of 2 articles, 0.9 length of endopod; article 1 0.2 length article 2, with simple seta; article 2 with many long slender simple setae ( Fig. 55H View FIGURE 55 ).

Etymology. The new species is named in honor of the late Roger Bamber, who was an excellent and productive taxonomist on the Tanaidacea and other peracarid groups.

Depth. 760 m.

Distribution. Chatham Rise, New Zealand, 44°30’S, 174°18.6’E.

Remarks. Platytyphlops bamberi , found in New Zealand waters, is most similar to P. echinatus , from Australian waters, but can be distinguished by the presence of spines ventral of the marginal carina and the unequal terminal setae on the telson; P. echinatus has no spines on the carapace ventral of the marginal carina, and the telson terminal setae are subequal in length.

NZOI

New Zealand Oceanographic Institute

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF