A NEW SPECIES OF PLACIDA (GASTROPODA: SACOGLOSSA) FROM SOUTHERN SOUTH AMERICA

被引：1

作者：

Cetra, Nicolas ^{[1
,3
]}

Gutierrez Gregoric, Diego E. ^{[2
,3
]}

Roche, Andrea ^{[1
,4
]}

机构：

[1] Escuela Super Ciencias Marinas ESiMar, San Martin 247, San Antonio Oeste, Rio Negro, Argentina

[2] Univ Nacl La Plata, Facukad Ciencias Nat & Museo, Museo La Plata, Div Zool Invertebrados, Paseo Bosque S-N,B1900WFA, La Plata, Buenos Aires, Argentina

[3] Consejo Nacl Invest Cient & Tecn CONICET, Buenos Aires, DF, Argentina

[4] Ctr Invest & Transterencia Tecnol Recursos Marino, Guemes 1030, San Antonio Oeste, Rio Negro, Argentina

来源：

MALACOLOGIA | 2021年 / 64卷 / 01期

关键词：

sea slugs; Argentina; South America; Placida spp; Codium fragile; SEA SLUGS; MOLLUSCA GASTROPODA; DIGESTIVE GLAND; HETEROBRANCHIA; ARGENTINA; PATAGONIA; CHLOROPLASTS; SYSTEMATICS; DISCOVERY; SYMBIOSIS;

D O I：

10.4002/040.064.0106

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Heterobranch sea slugs exhibit a wide range of body shapes, sizes and color patterns. The genus Placida (Sacoglossa) includes cryptic species, and in 2019 four species were recovered through molecular studies. Specimens of Placida collected in the Argentinian Sea (San Matias Gulf, Patagonia) between 2016 and 2019 are shown to belong to an undescribed species using molecular and morphological evidence. Placida sudamericana n. sp. is described using extemal, radular, penial stylet and egg mass characters. The specimens were always found associated with the green algae Codium fragile. Placida sudamericana is the only Placida species in the South Atlantic waters of South America and was recorded in a molluscan biodiversity hotspot.

引用

页码：109 / 120

页数：12

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