Campylaspis sculptaspinosa, Gerken, 2012

Gerken, Sarah, 2012, 3524, Zootaxa 3524, pp. 1-124 : 76-82

Campylaspis sculptaspinosa n. sp.

Figures 43–46

Type material. Holotype ovigerous female, NIWA 80665 , paratype ovigerous female, dissected, NIWA 80666 , paratype adult male, dissected, NIWA 80667 , 43.5300°S, 178.5048°E – 43.5363°S, 178.5118°E, 346 m, 24 April 2007.

Other material examined. 1 juvenile, NIWA 79299 , 43.8363°S, 176.7092°E – 43.8330°S, 176.7127°E, 478–479 m, 5 April 2007 . 1 ovigerous female, NIWA 79300 , 43.5300°S, 178.5048°E – 43.5363°S, 178.5118°E, 346 m, 24 April 2007 . 22 ovigerous females, 2 adult males, 48 juveniles, NIWA 46214 , 43.5300°S, 178.5048°E – 43.5363°S, 178.5118°E, 346 m, 24 April 2007 . 2 ovigerous females, 1 subadult female, 2 adult males, NIWA 79301 , 43.7967°S, 175.3158°E – 43.8045°S, 175.3148°E, 418–422 m, 27 April 2007 . 2 ovigerous females, 2 subadult females, 3 subadult males, 5 mancae, NIWA 79302 , 39.6373°S, 172.1532°E – 39.6457°S, 172.1522°E, 264–266 m, 7 June 2007 . 2 ovigerous females, NIWA 79303 , 39.6373°S, 172.1532°E – 39.6457°S, 172.1522°E, 264–266 m, 7 June 2007 .

Diagnosis. Females and subadult males. Carapace with sulcus bounded by carinae, distinct teeth all over carapace and dorsally to pleonite 2, with a pair of large tubercles at corners of frontal lobe, with spine on tubercle; pseudorostrum not dorsally directed. Carapace, pereonites and pleonites with scattered red chromatophores. Pereonites 1–5 free, pereonites 1–2 with strong dorsal lappets. Pereopod 2 dactylus normal, terminal seta long. Uropod peduncles 2.8–3.0 times length of pleonite 6. Male. Carapace less vaulted than in female, sulcus less pronounced, spines small. Pleonites 1–5 with lateral depression to accommodate antennal flagellum.

Description of female.

Holotype ovigerous female, 3.2 mm, NIWA 80665. Paratype ovigerous female, 3.0 mm, NIWA 80666. Carapace with sulcus bounded by carinae, distinct teeth all over carapace and dorsally to pleonite 2, with a pair of large tubercles at corners of frontal lobe, with spine on tubercle; pseudorostral lobes not dorsally directed, 0.3 times carapace length; eyelobe absent. Pereonites 1–5 free, with dorsal spines; pereonites 1–2 with strong dorsally directed lappets. Pleonites 1–2 with dorsal spines. Carapace, pereonites and pleonites with scattered red chromatophores ( Figures 43A–B).

Antennule peduncle article 1 longest, with 2 simple setae; article 2 0.8 times article 1 length, with 3 simple setae; article 3 0.9 times article 2 length, with pedunculate seta; main flagellum of 3 articles, with 2 aesthetascs; accessory flagellum of 1 article, with 3 pedunculate setae ( Figure 43C).

Mandible truncate, with 4–5 simple setae medially, lacinia mobilis with 3 cusps ( Figure 43D).

Maxillule with 2 endites; outer endite broad, with 8 simple and 1 dentate setae; inner endite with 3 simple, 1 microserrate and 1 bicuspid setae; palp with 2 microserrate setae ( Figure 43E).

Maxilla reduced to single endite, with 3 simple setae terminally ( Figure 43F).

Maxilliped 1 basis with 3 plumose and 2 hook setae; merocarpus 1.3 times basis length, with 5 simple and 1 plumose setae; dactylus with simple seta ( Figure 43G).

Maxilliped 2 basis 0.8 times length of all other articles together, with plumose seta; ischium absent; merus 0.3 times basis length, with plumose seta; carpus 0.8 times merus length, with 1 simple and 2 plumose setae, medial corner produced as tooth; propodus 1.2 times carpus length, with 1 simple seta, distal margin produced as long process; dactylus 1.5 times propodus length, produced as 3 teeth terminally, central tooth short ( Figure 43H).

Maxilliped 3 basis 0.7 times length of all other articles together, with 2 plumose setae medially, 1 simple and 1 plumose setae on distal corner; ischium 0.05 times basis length, unarmed; merus 11.5 times ischium length, with 6 plumose setae medially, plumose seta laterally, lateral margin produced as 2 strong teeth; carpus 0.4 times merus length, with 5 plumose setae medially, 2 plumose setae laterally, lateral margin produced as 2 strong teeth; propodus 1.6 times carpus length, with 3 plumose setae; dactylus 0.6 times propodus length, with 3 simple setae terminally; exopod 1.1 times basis length, basal article unarmed, flagellum with plumo-annulate setae ( Figure 44A).

Pereopod 1 basis 0.7 times length of all other articles together, with 3 simple and 1 plumose setae; ischium 0.1 times basis length, with 2 plumose setae, lateral margin produced as 2 strong teeth; merus 3.9 times ischium length, with 7 simple and 3 plumose setae, lateral margin produced as single tooth; carpus 0.6 times merus length, with 6 simple and 1 plumose setae; propodus 0.9 times carpus length, with 5 simple setae; dactylus 0.6 times propodus length, with 6 simple setae terminally; exopod equal to basis length, basal article with simple seta, flagellum with plumo-annulate setae ( Figure 44B).

Pereopod 2 basis 0.5 times length of all other articles together, with 2 simple and 1 plumose setae; ischium 0.06 times basis length, unarmed; merus 5.0 times ischium length, with 2 simple and 2 plumose setae; carpus 2.5 times merus length, with 2 simple and 2 plumose setae; propodus 0.3 times carpus length, with simple seta; dactylus 3.5 times propodus length, with 5 simple and 5 plumose setae, terminal seta plumose; exopod 1.4 times basis length, basal article with 2 simple setae, flagellum with plumo-annulate setae ( Figure 44C).

Pereopod 3 basis 1.9 times length of all other articles together, with 4 simple, 1 plumose and 2 pedunculate setae; ischium 0.1 times basis length, with 2 simple and 1 plumo-annulate setae; merus 1.2 times ischium length, with 1 simple and 1 plumo-annulate setae; carpus 1.3 times merus length, with 1 simple, 1 plumose and 1 annulate setae; propodus 0.6 times carpus length, with annulate seta; dactylus 0.8 times propodus length, with 2 simple setae, terminal seta plumose ( Figure 44D).

Pereopod 4 basis 0.9 times length of all other articles together, with 3 simple and 2 pedunculate setae; ischium 0.2 times basis length, with plumose seta; merus 1.4 times ischium length, with plumose seta; carpus 2.1 times merus length, with 2 simple, 1 plumose and 1 annulate setae; propodus 0.3 times carpus length, with annulate seta; dactylus 0.8 times propodus length, with 2 simple setae, terminal seta plumose ( Figure 44E).

Pereopod 5 basis 0.8 times length of all other articles together, with 1 simple and 2 pedunculate setae; ischium 0.2 times basis length, with simple seta; merus 1.8 times ischium length, with plumose seta; carpus 1.3 times merus length, with 1 plumose and 1 annulate setae; propodus 0.4 times carpus length, with annulate seta; dactylus equal to propodus length, with 2 simple setae, terminal seta plumose ( Figure 44F).

Uropod peduncles 2.8 times pleonite 6 length, with 12 simple setae. Uropod endopod uniarticulate, 0.4 times peduncle length, with 3 microserrate with single subterminal setule setae medially, simple seta with single subterminal setule laterally, terminal seta microserrate with single subterminal setule. Uropod exopod of 2 articles, equal to length of endopod; article 1 0.3 times article 2 length; article 2 with 3 simple setae, terminal seta microserrate ( Figure 44G).

Description of male.

Paratype adult male, 3.1 mm, NIWA 80667. Carapace with weak sulcus, bounded ventrally by carina, covered in spines, with pair of large tubercles at corners of frontal lobe, with spine dorsally on tubercle; pseudorostral lobes not dorsally directed, 0.3 times carapace length; eyelobe absent. Pereonites 1–5 free, pereonites 1–2 with strong dorsal lappets, pereonites 3–5 expanded laterally, all with dorsal spines. Pleonites with lateral groove for antennal flagellum, pleonites 1–2 with dorsal spines. Carapace, pereonites and pleonites with sparsely scattered red chromatophores ( Figure 45A).

Antennule peduncle article 1 longest, with plumose seta, margins lined with fine hair-like setae; article 2 0.8 times article 1 length, with 3 simple and 2 pedunculate setae; article 3 0.9 times article 2 length, with 1 simple and 1 pedunculate setae; main flagellum of 3 articles, with 2 aesthetascs and 2 simple setae; accessory flagellum of 1 article, with 4 simple and 1 pedunculate setae ( Figure 45B).

Antenna extending to posterior border of uropod peduncles; peduncle of 5 articles, article 3 with plumose seta; articles 4–5 with ranks of setae, incompletely circling articles; flagellum with 22 articles, each with simple seta ( Figures 45C–D).

Maxilliped 3 basis equal to length of all other articles together, with 2 plumose setae medially, distal corner with 2 plumose setae, medial margin produced as large teeth distally; ischium 0.05 times basis length, medial margin produced as strong tooth; merus 8.0 times ischium length, with 5 plumose setae medially plumose seta laterally, lateral margin lined with fine hair-like setae, margins produced as strong teeth; carpus 0.4 times merus length, with 4 plumose setae medially, plumose seta laterally, lateral margin produced as strong teeth; propodus 1.3 times carpus length, with 3 plumose setae medially, plumose seta laterally, medial margin lined with fine hair-like setae; dactylus 0.5 times propodus length, with 3 simple setae terminally; exopod 1.1 times basis length, basal article with simple seta, flagellum with plumo-annulate setae ( Figure 45E).

Pereopod 1 basis equal to all other articles together, with 1 simple and 2 plumose setae; ischium 0.07 times basis length, with plumose seta; merus 5.0 times ischium length, with 2 simple and 10 plumose setae; carpus 0.8 times merus length, with 11 simple setae; propodus 0.8 times carpus length, with 5 plumose setae; dactylus 0.6 times propodus length, with 2 simple setae and 3 simple setae terminally; exopod equal to basis length, basal article with 2 simple setae, flagellum with plumo-annulate setae ( Figure 45F).

Pereopod 2 basis 0.8 times length of all other articles together, with 3 simple and 1 plumose setae; ischium 0.03 times basis length, unarmed; merus 5.0 times ischium length, with 1 simple and 2 plumose setae; carpus 3.6 times merus length, with 4 simple and 3 plumose setae; propodus 0.2 times carpus length, unarmed; dactylus 5.3 times propodus length, with 5 simple and 4 simple setae, 1 simple and 1 plumose setae terminally; exopod 1.2 times basis length, basal article with plumose seta, flagellum with plumo-annulate setae ( Figure 45G).

Pereopod 3 basis 2.0 times length of all other articles together, with 3 simple and 2 complex pedunculate setae; ischium 0.07 times basis length, with plumose seta; merus equal to ischium length, with plumose seta; carpus 3.7 times merus length, with 2 simple and 1 annulate setae; propodus 0.3 times carpus length, with annulate seta; dactylus 0.7 times propodus length, with 2 simple setae terminally; exopod equal to basis length, basal article with 1 simple and 1 plumose setae, flagellum with plumo-annulate setae ( Figure 45H).

Pereopod 4 basis 1.7 times length of all other articles together, with 2 simple setae; ischium 0.09 times basis length, with 1 simple and 2 plumose setae; merus 1.3 times ischium length, with plumose seta; carpus 2.0 times merus length, with 2 simple and 1 annulate seta; propodus 0.5 times carpus length, with 1 annulate and 1 complex pedunculate setae; dactylus 0.5 times propodus length, with simple seta terminally; exopod equal to basis length, basal article with plumose seta, flagellum with plumo-annulate setae ( Figure 45I).

Pereopod 5 basis 0.7 times length of all other articles together, with 3 simple and 2 complex pedunculate setae; ischium 0.2 times basis length, with plumose seta; merus 1.7 times ischium length, with 1 simple and 1 plumose setae; carpus 2.2 times merus length, with 2 simple and 1 annulate setae; propodus 0.4 times carpus length, with 1 annulate and 1 complex pedunculate setae; dactylus 0.5 times propodus length, with simple seta, terminal seta plumose ( Figure 45J).

Uropod peduncles 3.0 times pleonite 6 length, with 3 simple and 9–10 microserrate setae. Uropod endopod uniarticulate, 0.4 times peduncle length, with 8 microserrate with single subterminal setule setae medially, 7 pedunculate and 4 microserrate with single subterminal setule setae laterally, terminal seta microserrate with single subterminal setule. Uropod exopod equal to length of endopod; article 1 0.3 times article 2 length, unarmed; article 2 with 4 simple and 1 plumose setae, terminal seta plumose ( Figure 46).

Etymology. The species is named sculptaspinosa from the Latin sculpta, in reference to the sculptured carapace with a sulcus and carinae, in combination with the Latin spinosa, in reference to the spines that are found throughout the carapace.

Remarks. The most similar species is Campylaspis millsae , which has an eyelobe in the female, fewer spines dorsally on the carapace, and teeth at the anteroventral corner of the carapace, while C. sculptaspinosa has no eyelobe in the female, many large spines dorsally on the carapace, and no teeth at the anteroventral corner of the carapace in either sex.