Sensory structures in tadpole larvae of the ascidians Microcosmus exasperatus Heller and Herdmania momus (Savigny)

Member of
HBOI Faculty Contributions
Contributors
Svane, Ib
Young, Craig M.
Publisher
John Wiley & Sons, Inc.
Date Issued
1991
Note

In this paper we describe the larval morphology of two species from the ascidian family Pyuridae, Microcosmus exasperatus and Herdmania momus, with special emphasis on components of the cerebral vesicle. Larvae have not previously been described for any species in the large genus Microcosmus. Besides a difference in size (larvae of H. momus are about 40% larger than those of M. exasperatus), larvae of the two species differ primarily in the number and arrangement of sensory structures. Both species possess a well-developed statocyte but only H. momus has an ocellus. The absence of an ocellus in M. exasperatus is unique among pyurid ascidians.

Language
English
Type
Text
Genre
article
Extent
8 p.
Subject (Topical)
Ascidians
Sea squirts
Pyuridae
Larvae
Morphology
Identifier
3342304
Additional Information
In this paper we describe the larval morphology of two species from the ascidian family Pyuridae, Microcosmus exasperatus and Herdmania momus, with special emphasis on components of the cerebral vesicle. Larvae have not previously been described for any species in the large genus Microcosmus. Besides a difference in size (larvae of H. momus are about 40% larger than those of M. exasperatus), larvae of the two species differ primarily in the number and arrangement of sensory structures. Both species possess a well-developed statocyte but only H. momus has an ocellus. The absence of an ocellus in M. exasperatus is unique among pyurid ascidians.
This manuscript is an author version with the final publication available at http://www.wiley.com/WileyCDA/ and may be cited as: Svane, I., & Young, C. M. (1991). Sensory structures in tadpole larvae of the ascidians Microcosmus exasperatus Heller and Herdmania momus (Savigny). Acta Zoologica, 72(3), 129-135. doi:10.1111/j.1463-6395.1991.tb00939.x
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution #788.
Date Backup
1991
Date Text
1991
DOI
10.1111/j.1463-6395.1991.tb00939.x
Date Issued (EDTF)
1991
Extension


FAU
FAU
admin_unit="FAU01", ingest_id="ing12925", creator="creator:BCHANG", creation_date="2012-06-15 14:02:14", modified_by="super:FAUDIG", modification_date="2014-02-13 16:05:03"

IID
FADT3342304
Issuance
single unit
Organizations
Attributed name: Harbor Branch Oceanographic Institute
Person Preferred Name

Svane, Ib

creator

Physical Description

pdf
8 p.
PURL
http://purl.flvc.org/FCLA/DT/3342304
Title Plain
Sensory structures in tadpole larvae of the ascidians Microcosmus exasperatus Heller and Herdmania momus (Savigny)
URL
http://purl.flvc.org/FCLA/DT/3342304
Origin Information

John Wiley & Sons, Inc.
1991
single unit
Title
Sensory structures in tadpole larvae of the ascidians Microcosmus exasperatus Heller and Herdmania momus (Savigny)
Other Title Info

Sensory structures in tadpole larvae of the ascidians Microcosmus exasperatus Heller and Herdmania momus (Savigny)