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Table 13 Comparative morphological and distributional data for the species of Leucopsacus Ijima, 1898

From: Seven new species of sponges (Porifera) from deep-sea coral mounds at Campos Basin (SW Atlantic)

Species

Choanosomal spicules

Dermal pentactins

Atrial hexactins

Anchorate discohexactins

Discohexasters

Other microscleres

Locality/depth (m)

L. barracuda sp. nov. (compiled from holotype and paratype)

H. 380–1334/8–20

D. 1500–3950/5–13

tan. 287–677/8–18

pro. 493–1047/

10–18

 

95–165

38–78

hd. 100 (rare)

SW Atlantic (Campos Basin, RJ)/744–923

L. distantus Tabachnick and Lévi, 2004 (orig. descr.)

H. 1000–5500/4–91 (also pentactins and stauractins)

tan. 1100–1800/38

pro. 4100–4200

 

262–245

I. 47–58

II. 532–912

 

New Caledonia/680–700

L. ingolfi Burton, 1928 (orig. descr.)

H. 300 (media)

D. present

tan.180

pro. 400

 

70

440 (media)

 

Boreal Atlantic/1317–1376

L. orthodocus Ijima, 1898 sensu Tabachnick (2002)

H. rays up to 500

D. 1500 (rare)

tan. 270

pro. 2 × tan

280 (at least)

110–168

50–88

hd. present

Japan/214–429

L. scoliodocus Ijima, 1903 (orig. descr.)

H. rays up to 4000

D. present

tan. 500–800

pro. 2 × tan

260–340

100–180

46–70

s. 38–50

Japan/572

L. scoliodocus var. retroscissus Topsent, 1904 (orig. descr.)

H. rays up to 2000

D. rare

tan. 400–500/25–30

 

105

40–60

hd. present

s. 50

Cape Verde Islands/598–1378

  1. Values are in µm
  2. D diactins, H hexactins, hd hemidiscohexasters, s. sigmatocomes, pro proximal ray, tan tangential ray