Bathycyathus chilensis Milne Edwards & Haime, 1848

Cairns, Stephen D., Häussermann, Verena & Försterra, Günter, 2005, A review of the Scleractinia (Cnidaria: Anthozoa) of Chile, with the description of two new species, Zootaxa 1018 (1), pp. 15-46 : 23-24

publication ID

https://doi.org/ 10.11646/zootaxa.1018.1.2

publication LSID

lsid:zoobank.org:pub:02411A3D-C81F-4E3D-A24F-8D07FF9A64C4

DOI

https://doi.org/10.5281/zenodo.5240888

persistent identifier

https://treatment.plazi.org/id/0D5E87EC-A31E-0A0C-9376-0442C7490A74

treatment provided by

Felipe

scientific name

Bathycyathus chilensis Milne Edwards & Haime, 1848
status

 

Bathycyathus chilensis Milne Edwards & Haime, 1848 View in CoL

Figs. 1G–H View FIGURE 1

Bathycyathus chilensis Milne Edwards & Haime, 1848: 294–295 View in CoL , pl. 9, fig. 5; Gay, 1854: 454–455. — Milne Edwards & Haime, 1857: 23. — Verrill, 1870: 539 (English translation of description of Milne Edwards & Haime, 1848). — Philippi, 1892: 8–9, pl. 2, figs. 3a–c. — Wells, 1936: 102–103. — Andrade, 1987: 78 (listed). — Piñón, 1999: 20, 80 (listed).

Bathycyathus Indicus Milne Edwards & Haime, 1848: 295 View in CoL , pl. 9, fig. 4; 1857: 23.

New Records. — Anton Bruun 12­ MV65 IV58 (33°38.2'S, 78°56.6'W), Isla Róbinson Crusoe, depth unknown, 14 Dec 1965, 8 corallites GoogleMaps , USNM 100706 About USNM ; Anton Bruun 12 ­ MV65 IV63 (33°41.2'S, 78°57'W), depth unknown, 15 Dec 1965, 8 corallites GoogleMaps , USNM 100707 About USNM ; Anton Bruun 12­135 (33° 34.3°S, 78°54.9'W), 160–180 m, 14 Dec 1965, 26 corallites GoogleMaps , USNM 100708 About USNM ; Anton Bruun 12 ­ MV65 IV47 (33°37.5'S, 78°40.7'W), depth unknown, 12 Dec 1965, 3 corallites GoogleMaps , USNM 100709 About USNM ; Anton Bruun 12­65240 (33°37'18"S, 78°50'20"W), 26–29 m, 12 Dec 1965, 3 corallites GoogleMaps , USNM 100710 About USNM ; Anton Bruun 12 ­ MV65 IV45 (33°37'S, 78°50'50"W), depth unknown, 12 Dec 1965, 1 dead corallite GoogleMaps , USNM 1021981 About USNM ; “ East side of Juan Fernández Islands ”, depth unknown, 12 Dec 1926, large colony of 25 corallites , USNM 100711 About USNM ; 32°31'S, 71°36'W (off Papudo, Chile), 420 m, 9 corallites GoogleMaps , MNHNS; Juán Fernández Island , 30 m, Dec 2002, large colony of 39 corallites, IZUA­CNI­0050 .

Remarks. — Bathycyathus chilensis was originally described from one specimen from “ Chile ” at an unspecified depth, and B. indicus was originally reputed to be from the Philippines, but Milne Edwards & Haime (1857) later indicated it was from Juan Fernández Islands at 80 fathoms (= 146 m). Wells (1936) made B. chilensis the type species of the genus, synonymized B. indicus with B. chilensis , and indicated that both type specimens were deposited at the Paris Museum. There is only one specific record of B. chilensis from the coast of Chile, reported herein from off Papudo at 420 m. The species is otherwise known only from off Isla Róbinson Crusoe of the Juan Fernández Islands at depths of 26– 180 m. As the records reported herein are the only subsequent to its original description, a short description follows.

The largest corallum (USNM 100711) is 13 cm wide and 9 cm tall ( Fig. 1I View FIGURE 1 ), consisting of about 25 contiguous corallites, all united basally in a common coenosteum. The largest corallite is 31 x 18 mm in CD and 48 mm in height, although the largest calice is 34 mm in GCD. Calices are circular to highly elliptical in outline, with a GCD:LCD ranging from 1 to 3.4, the more elongate calices appearing to be a precursor to distomedial intratentacular budding, although extratentacular budding from the common basal coenosteum is more common. Costae are well developed, ridged, and separated from one another by deep intercostal grooves. The corallum is uniformly white. Septa are hexamerally arranged in five cycles (96 septa), the more elongate calices with pairs of S 6 in the end half­systems. Septal formula: S1–2>S3>4>>S5. S1–2, and their adjacent S5, are highly exsert (up to 3 mm), producing a lancetted calicular margin. S5 are quite small. The occurrence of pali and/or paliform lobes is quite variable. Some corallites have 12 distinct, but small, P3 positioned low in the fossa, but most corallites have no indication of P3 at all. P4 are much more common, often forming a crown of 24 discrete P4, but in many corallites the pali are reduced to little more than thickenings of the lower axial edges of the S4. The columella is usually a well­developed, elongate field of fascicular elements sitting low in the fossa, but occasionally it is absent, being crowded out by the lower axial edges of the S1– 4.

Kingdom

Animalia

Phylum

Cnidaria

Class

Anthozoa

Order

Scleractinia

Family

Caryophylliidae

Genus

Bathycyathus

Loc

Bathycyathus chilensis Milne Edwards & Haime, 1848

Cairns, Stephen D., Häussermann, Verena & Försterra, Günter 2005
2005
Loc

Bathycyathus chilensis

Pinon, G. C. 1999: 20
Andrade, H. 1987: 78
Wells, J. W. 1936: 102
Philippi, R. A. 1892: 8
Verrill, A. E. 1870: 539
Milne Edwards, H. & Haime, J. 1857: 23
Gay, C. 1854: 454
Milne Edwards, H. & Haime, J. 1848: 295
1848
Loc

Bathycyathus Indicus Milne Edwards & Haime, 1848: 295

Milne Edwards, H. & Haime, J. 1848: 295
1848
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