Alticuma, DAY, 1978
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publication ID |
https://doi.org/ 10.1111/j.1096-3642.2007.00371.x |
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DOI |
https://doi.org/10.5281/zenodo.10546299 |
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persistent identifier |
https://treatment.plazi.org/id/553A7925-FF8A-F11E-9A89-F981FC17F892 |
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treatment provided by |
Felipe |
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scientific name |
Alticuma |
| status |
SP. NOV. |
ALTICUMA View in CoL ? ECTYPHUM SP. NOV. ( FIGS 16 View Figure 16 , 17 View Figure 17 )
Type material: Holotype: preadult male without abdomen, partially dissected, New Caledonia, BIO- GEOCAL, stn CP260 21°00.00′S, 167°58.34′E, 1820– 1980 m, 17.iv.1987 (MNHN-Cu1092). GoogleMaps
Diagnosis: Carapace ornamented with longitudinal ridges with small rounded pits on the depressions. Pseudorostrum long and upturned. Pereonite 1 visible dorsally and laterally. Pereopod 2 7-articulate.
Description: Preadult male 2.9 mm carapace length. Carapace ( Fig. 16A View Figure 16 ) ornamented with longitudinal ridges and small pits on the depressions. Pseudorostrum longer than one-third carapace length, upturned. Eye-lobe rounded without lenses. Antennal notch well marked, anterolateral angle acute. Pereonite 1 visible dorsally and laterally. No exopods beyond pereopod 1.
Antennule ( Fig. 16B View Figure 16 ), peduncle article 1 longer than following two articles combined; articles 2 and 3 of same length; main flagellum 2-articulate, with two aesthetascs; accessory flagellum rudimentary. Mouth appendages were not dissected in order to preserve the holotype.
Maxilliped 1 ( Fig. 16C View Figure 16 ), basis with five plumoserrate setae on inner margin, distally produced reaching carpus; carpus with five small flattened setae on the inner margin and pappose setae on outer margin; propodus with three serrate setae on distal inner corner; dactylus small and barely visible. Maxilliped 2 ( Fig. 16D View Figure 16 ) basis longer than rest of appendage, with two pappose setae on inner distal corner; merus shorter than carpus, with a long pappose seta on distal margin; carpus with a long plumose seta on distal outer corner and four plumose setae on inner margin; propodus shorter than carpus, with three setae on inner margin. Maxilliped 3 ( Fig. 17A View Figure 17 ), basis twice as long as rest of appendage, produced distally reaching half length of carpus, with seven plumose setae on inner margin of production, four on outer margin and two on the tip of production; merus also produced with a long plumose seta on the tip; carpus longer than propodus; dactylus longer than propodus. Pereopod 1 ( Fig. 17B View Figure 17 ) with well-developed exopod, basis longer than rest of appendage, with a small plumose seta distally; ischium and merus short; carpus longer than propodus; dactylus half length of propodus. Pereopod 2 ( Fig. 17C View Figure 17 ), basis longer than rest of appendage; ischium short; merus shorter than carpus; propodus as short as ischium; dactylus three times as long as propodus, with two setae terminally. Pereopod 3 ( Fig. 17D View Figure 17 ), basis slightly longer than rest of appendage; merus twice as long as ischium; carpus twice as long as merus; propodus with a simple seta on distal corner. Pereopod 4 ( Fig. 17E View Figure 17 ), basis slightly shorter than rest of appendage; merus twice long as ischium and half length of carpus; propodus with a simple seta on distal corner. Pereonite 5 and pleon missing.
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