First record of Thylaeodus (Gastropoda: Vermetidae) from the Equatorial Atlantic Ocean, with the description of a new species

被引：5

作者：

Spotorno, Paula ^{[1
]}

Simone, Luiz Ricardo L. ^{[2
]}

机构：

[1] Univ Fed Rio Grande, Museu Oceanog Prof Eliezer de Carvalho Rios, BR-96200580 Rio Grande, RS, Brazil

[2] Univ Sao Paulo, Museu Zool, BR-04299970 Sao Paulo, Brazil

来源：

ZOOLOGIA | 2013年 / 30卷 / 01期

关键词：

Mollusca; Sao Pedro and Sao Paulo Archipelago; taxonomy; anatomy Thylaeodus equatorialis sp nov; vermetid; SAO-PAULO ARCHIPELAGO; REPRODUCTIVE-BIOLOGY; DENDROPOMA; MORPHOLOGY;

D O I：

10.1590/S1984-46702013000100011

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The vermetid Thylaeodus equatorialis sp. nov. is endemic to the Sao Pedro and Sao Paulo Archipelago, located at the mid equatorial Atlantic Ocean. The species is closely related to Thylaeodus rugulosus (Monterosato, 1878), as indicated by similar shell characters, coloration of the soft parts, and feeding tube scars. However, T equatorialis sp. nov. mainly differs from T rugulosus in the operculum/aperture diameter ratio (similar to 79% versus 100%), by having well developed pedal tentacles and fewer egg capsules in brooding females. In addition, the new species has the following unique characteristics: size almost twice as large (shell, tube aperture, erect feeding tube, protoconch and egg capsules) as the other Atlantic species; unusual method of brooding egg capsules; radula with prominent and more numerous flanking cusps; and small pustules following the suture of the protoconch. A detailed discussion on the taxonomy and biology of vermetid Thylaeodus and allies is also presented.

引用

页码：88 / 96

页数：9

共 50 条

[31] A NEW SUBGENUS OF HOLOTHURIA WITH A DESCRIPTION OF A NEW SPECIES FROM THE SOUTHEAST ATLANTIC-OCEAN
THANDAR, AS
JOURNAL OF ZOOLOGY, 1988, 215 : 47 - 54
[32] Description of a new species of Echiodon (Teleostei: Carapidae) from the South Atlantic Ocean
Anderson, ME
ZOOTAXA, 2005, (809) : 1 - 5
[33] A new species of Gerdiella (Gastropoda: Cancellariidae) from the South Atlantic Ocean off Brazil with discussion of an undescribed species
de Lima, Sihio Felipe B.
de Barros, Jose Carlos N.
Petit, Richard E.
NAUTILUS, 2007, 121 (02): : 99 - 103
[34] First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea
Sautya, Sabyasachi
Tabachnick, Konstantin R.
Ingole, Baban
ZOOTAXA, 2010, (2667) : 64 - 68
[35] First verified record of the genus Landouria Godwin-Austen, 1918 from Thailand (Gastropoda: Stylommatophora: Camaenidae) with description of a new species
Tumpeesuwan, Chanidaporn
Tulmpeesuwan, Sakboworn
RAFFLES BULLETIN OF ZOOLOGY, 2019, 67 : 298 - 305
[36] First record of the woodwasp family Xiphydriidae from Tasmania with a description of a new species and host record
Jennings, John T.
Austin, Andrew D.
Bashford, Richard
AUSTRALIAN JOURNAL OF ENTOMOLOGY, 2009, 48 : 25 - 28
[37] The fossil record and phylogeography of the family Cerionidae (Gastropoda: Pulmonata), with the description of a new species from the Pleistocene of Florida
Harasewych, M. G.
NAUTILUS, 2012, 126 (04): : 119 - 126
[38] NEW SPECIES OF GAZA, MIRACHELUS, CALLIOTROPIS, AND ECHINOGURGES (GASTROPODA, TROCHIDAE) FROM THE NORTHWESTERN ATLANTIC-OCEAN
QUINN, JF
NAUTILUS, 1991, 105 (04): : 166 - 172
[39] A new species of Zeadmete (Gastropoda: Cancellariidae) from South Carolina, a genus previously unknown in the Atlantic Ocean
Petit, Richard E.
Campbell, Lyle D.
Campbell, Sarah C.
NAUTILUS, 2010, 124 (01): : 41 - 43
[40] A new species of nudibranch of the genus Learchis (Gastropoda: Heterobranchia: Facelinidae) from the tropical western Atlantic Ocean
Crescini, Roberta
De Sisto, Makcim
Villalba, William
AMERICAN MALACOLOGICAL BULLETIN, 2013, 31 (02) : 339 - 341

← 1 2 3 4 5 →