Integripelta, 2002

Gordon, Dennis P., Mawatari, Shunsuke F. & Kajihara, Hiroshi, 2002, New taxa of Japanese and New Zealand Eurystomellidae (Phylum Bryozoa) and their phylogenetic relationships, Zoological Journal of the Linnean Society 136 (2), pp. 199-216 : 209-210

publication ID	https://doi.org/ 10.1046/j.1096-3642.2002.00020.x
DOI	https://doi.org/10.5281/zenodo.5106371
persistent identifier	https://treatment.plazi.org/id/039B3920-2865-7744-FC15-FAACFE35D37F
treatment provided by	Carolina
scientific name	Integripelta
status	sp. nov.

Treatment

INTEGRIPELTA SEXTARIA View in CoL SP. NOV.

( FIG. 2E, F View Figure 2 )

Material examined

Holotype: NZOI H-750, from NZOI Stn Z 9700, 34°22.88¢S, 172°39.71¢E, 54 m, Spirits Bay , New Zealand.

Paratype: NZOI P-1220, separated part of holotype colony, same locality .

Description

Colony encrusting, multiserial, unilaminar. Autozooids contiguous, quincuncially arranged, 0.47– 0.75 mm long (0.62 ± 0.07 mm), 0.32–0.57 mm wide (0.45 ± 0.07 mm). Gymnocystal frontal shield smoothsurfaced, somewhat convex, no umbo or carina, lacking fenestrae. Orifice somewhat hat-shaped, the anter high-arched with the proximal embayments rounded, the proximal rim of the poster gently and evenly concave; the lateral excavations of the gymnocyst well developed, occurring on either side of the embayments and extending proximally a short distance. Orifice of maternal zooids obviously dimorphic (0.30–32 mm wide at the proximal margin) compared to that of autozooids (0.20–0.28 mm); distal kenozooidal chamber well developed, with a conspicuous transverse or circular foramen. No basal pore-chambers, interzooidal communications comprising a row of uniporous septula along each lateral wall. Ancestrula not seen.

Etymology

From sextarius (L.) sixth, alluding to the discovery of a sixth species of eurystomellid in New Zealand waters.

Remarks

Integripelta sextaria resembles I. bilabiata but has smaller zooids and a proportionately broader ‘ooecial kenozooid’ with a relatively very large foramen. The gymnocystal excavations are often relatively long, as in I. novella , but again, the ‘ooecial kenozooid’ and foramen are significantly larger in I. sextaria .

Distribution

Endemic to New Zealand; known only from Spirits Bay, North Island, 54 m.