Haploops antennata, Kaim-Malka, 2012
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publication ID |
https://doi.org/ 10.11646/zootaxa.3320.1.2 |
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persistent identifier |
https://treatment.plazi.org/id/038C8C19-FFD5-FF84-7CB5-FDB7FE73FAF5 |
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treatment provided by |
Felipe |
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scientific name |
Haploops antennata |
| status |
n . sp. |
Haploops antennata View in CoL n. sp.
( Figs. 1–4)
Type material. The five specimens were collected in the Baie de la Forêt , off Concarneau, ( France, Atlantic coast), on 1 December 1969, in Infralittoral (M. Glémarec, personnal communication) .
HOLOTYPE. One adult female, with oostegites not completely developed (oostegites without setae), 12,6mm. Holotype is deposited in Museum National d’Histoire Naturelle N°: MNHM- Am 7571.
PARATYPES.
One adult female, with oostegites not completely developed (oostegites without setae), This specimen is deposited in Museum National d’Histoire Naturelle N°: MNHM-Am 7572.
3 specimens + 1 anterior part are deposited in Museum National d’Histoire Naturelle N°: MNHM-Am 7573.
Male unknown.
Etymology. The name species refers to the antennae length, Antenna 1 longer than Antenna 2.
Diagnosis. Antenna 1 slightly longer than Antenna 2. The superior pair of corneal lenses is only present. Coxa 4 triangular rounded. The Pereopod 7 basis is narrow, with numerous plumose setae on the inner side, the external side is glabrous. Epimeral plate 2 and 3 with the postero-distal corner ended with a little acute tooth. Uropod 1 rami: int. rami = 1 / 2 ext. rami. Body without long dorsal setae on Pereon, Pleon, and Urosome.
Description. Holotype. Adult female, 12,6 mm ( Fig.1).
Body without long dorsal setae on the Pereon, Pleon, and Urosome.
Head: without rostrum, a little less longer than the first two segments of Pereon combined. Superior pair of corneal lenses present, the inferior one absent. Anterior margin straight, slightly oblique ( Fig.1).
Antenna 1: slightly longer than A2. Peduncle of A1 with article 3 <article 1 <article 2 (= 5/12/17), flagellum with 22 articles ( Fig. 2A View FIGURE 2 ).
Antenna 2: Slightly less longer than A1. One tooth present on the antero-inferior margin of peduncle segment 2 ( Fig. 2A View FIGURE 2 ). Peduncle segment 4 slightly shorter than 5 (14/16). Flagellum with 14 articles.
Antenna 1 and antenna 2 poorly setose on peduncle, two setae present on each segment of the flagellum. They are shorter than the body (1/2 of the body).
Mandible ( Fig. 2F View FIGURE 2 ). Segment 2 and 3 of mandibular palp of same length. Distal part of the tooth tridentated ( Fig. 2G View FIGURE 2 ). Segment 2 = segment 3 = length of apical setae of segment 3.
Maxilla 1 ( Fig. 2D View FIGURE 2 ). One apical seta present on inner plate. Inner margin fringed with small hairs.
Maxilla 2 ( Fig. 2E View FIGURE 2 ). The two plates are densely setose on their apical part.
Maxilliped ( Fig. 2B View FIGURE 2 ). Inner margin of segment 2 and 3 of palp densely setose. The dactylus bears 2 setae ( Fig. 2C View FIGURE 2 ).
Pereon. Without long dorsal setae ( Fig.1).
Gnathopod 1 ( Fig. 3A View FIGURE 3 ). Distal part of coxa 1 slightly expanded and fringed with setae. Each article of the gnathopod bears long setae. Basis long, basis = ischium + merus + carpus + propodus. Carpus and propodus oval, short and of same length. Dactylus curved, with short setae on the interior margin ( Fig. 3B View FIGURE 3 ).
Gnathopod 2 ( Fig. 3C View FIGURE 3 ). Coxa 2 roughtly rectangular, distal margin rounded, fringed with short setae. Each article bears long setae. The basis is the longer article, slightly longer than carpus + propodus. Dactylus curved, with short setae on the interior margin ( Fig. 3D View FIGURE 3 ).
Pereopod 3 ( Fig. 3E, F View FIGURE 3 ). Coxa 3 roughtly rectangular, distal margin rounded, fringed with very short setae. Basis fringed with long setae, basis = ischium + merus + carpus. Ischium = carpus. Carpus with long setae. Dactylus curved, as long as propodus.
Pereopod 4 ( Fig. 3G, H View FIGURE 3 ). Coxa heart shaped (triangular rounded). Posterior corner rounded, posterior concavity very moderated. Distal margin fringed with short setae. Basis long, basis = merus + carpus + propodus. Dactylus curved, as long as propodus. Each articles fringed with setae.
Pereopod 5 ( Fig. 3J, K View FIGURE 3 ). Basis wide, roughtly rectangular, anterior margin rounded, fringed with some plumose setae. Merus with a short anterior and posterior lobe. Carpus with 6 rows of spines on posterior margin. Propodus narrow (= 1/2 carpus width), with spines on the anterior margin. Dactylus strong and curved ( Fig. 3K View FIGURE 3 ).
Pereopod 6 ( Fig. 4A View FIGURE 4 ). Same structure than pereopod 5, but basis roughtly square, with short setae on anterior margin. Carpus with 4 rows of spines on posterior margin. Dactylus strong and curved ( Fig. 4B View FIGURE 4 ).
Pereopod 7 ( Fig. 4C View FIGURE 4 ). Basis narrow (length without lobe / width = 30/14), with numerous plumose setae on inner side. External side glabrous. Lobe rounded, not exceeding the ischium distal edge. Anterior and posterior margin slightly concave. Ischium without anterior or posterior distal lobe. Merus roughly rectangular, with a small antero-distal lobe. Carpus oval, with a small anterior and posterior lobe, with 6 spines on anterior margin, 2 spines and 2 long setae on posterior margin (propodus / carpus =5/14; propodus + dactylus / carpus = 7.5 /14). Propodus very narrow (1/5 carpus width). Dactylus narrow, short, with a little apical seta (dactylus/ propodus = 2.5 / 5) ( Fig. 4D View FIGURE 4 ).
Pleon. Without long dorsal setae ( Fig.1).
Epimeral plate 1 ( Fig. 2H View FIGURE 2 ). Antero-distal corner quadrangulate, posterior margin rounded.
Epimeral plate 2 and 3 ( Fig. 2H View FIGURE 2 ). Inferior and posterior margins slightly curved. Postero-distal corner ended with a little tooth.
Urosome ( Fig. 1). The carina is straight, moderately hight, with two very small setae.
Uropod 1 ( Fig. 4E View FIGURE 4 ) long, external ramus longer than internal one (int/ext = 21/41), rami shorter than peduncle. Internal margin of peduncle and ramus ornemented with short hairs and spines. External ramus slightly curved. Uropod 2 rami ( Fig. 4F View FIGURE 4 ) of equal length, shorter than peduncle and with two rows of spines on each ramus. Peduncle with some long spines mainly on the distal part, and one long seta. Uropod 3 ( Fig.4G View FIGURE 4 ) peduncle short and strong, rami foliaceous and of equal length, longer than peduncle (rami / peduncle = 32 / 21), apical part of each ramus with numerous setae. Long setae on inner margin of external ramus, internal ramus with two rows of spines on the inner margin.
Telson ( Fig. 2J View FIGURE 2 ) triangular rounded, wider than long (36 / 27), cleft on 22/27 of the length. Two short setae on the apical part of each lobe (length setae / length telson = 5 / 27).
Distribution. The five specimens were collected in sandy muds bottom (<10 meters), in only one sample in the area, and in these conditions, it was difficult to give some valuable data on the biology, ecology, ethology, distribution, of the species. The mouthpart of Haploops antennata is characteristic of the genus Haploops which are essentially filter feeders.
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.