NDLI: Comparative morphology of the external male genitalia in Lophogastrida, Stygiomysida, and Mysida (Crustacea, Eumalacostraca)

Content Provider	Springer Nature Link
Author	Wittmann, Karl J.
Copyright Year	2013
Abstract	External organs associated with the male gonopore are described for 29 species covering for the first time all seven currently acknowledged, extant families of the orders Lophogastrida, Stygiomysida, and Mysida, and all ten subfamilies of the Mysidae (Mysida). The gonopores are located throughout on the structures of the coxa of the eighth thoracopods. The three orders are consistently differentiated based on their male genital characteristics. Species of the Stygiomysida genera Stygiomysis (Stygiomysidae) and Spelaeomysis (Lepidomysidae) share a closing apparatus formed by two laminar lobes flanking the genital orifice, an anterior setose lobe, and a posterior bare lobe; no tubular penes are developed. In contrast, the Lophogastrida are characterized by a bare, slot-like orifice without lobes; also, in this taxon, no tubular penes are developed. The gonopore is on the inner wall of the coxa without conspicuous elevation in the species of Eucopia (Eucopiidae) and Lophogaster (Lophogastridae) and on the top of an anvil-like elevation in Paralophogaster (Lophogastridae), or of a dome-shaped elevation in Gnathophausia and Neognathophausia (Gnathophausiidae). In all examined species of the Mysida, the gonopores show a closing apparatus formed by lobes; one or more of these lobes is setose in most species. Within the Mysida, the genus Hansenomysis (Petalophthalmidae) and most subfamilies of the Mysidae have well-developed paired penes with (sub) terminal orifice. Only Rhopalophthalmus (Rhopalophthalminae) lacks penes but has bilobate gonopores located without additional elevation at the inner distal corner of the strongly enlarged coxa of the eighth thoracopods; this coxa contains a large seminal vesicle. Within the variety of external male genitalia in the Eumalacostraca, the structures associated with the gonopores appear to be plesiomorphic in Lophogastrida. In the Mysida, they appear to be apomorphic and support the monophyly of this order with respect to the previously published, competing phylogenetic trees. This requires additional evidence in the case of the Stygiomysida.
Starting Page	389
Ending Page	401
Page Count	13
File Format	PDF
ISSN	0720213X
Journal	Zoomorphology
Volume Number	132
Issue Number	4
e-ISSN	1432234X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-07-09
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Morphology Phylogeny Male gonopore Closing apparatus Tubular penis Malacostraca Animal Anatomy / Morphology / Histology Developmental Biology Evolutionary Biology Animal Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Developmental Biology Animal Science and Zoology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Comparative morphology of the male genitalia of Aphididae (Insecta, Hemiptera): part 1

The genital morphology of Zorotypus hubbardi Caudell, 1918 (Insecta: Zoraptera: Zorotypidae)

A comparative morphology of the male genitalia of Aphididae (Insecta, Hemiptera): part 2

Morphology and deep metazoan phylogeny

Early embryonic development of the freshwater shrimp Caridina multidentata (Crustacea, Decapoda, Atyidae)

Ultrastructure of the spermatozoa of Aristaeopsis edwardsiana and Aristeus varidens (Crustacea, Dendrobranchiata, Aristeidae)

Pattern of occurrence of supraneural coelomopores and intertentacular organs in Gymnolaemata (Bryozoa) and its evolutionary implications

Male reproductive system of the red brocade hermit crab Dardanus insignis (Diogenidae) and its relationship to other family members

Mysida and Lophogastrida of Greece: a preliminary checklist

Comparative morphology of the external male genitalia in Lophogastrida, Stygiomysida, and Mysida (Crustacea, Eumalacostraca)

Similar Documents

Comparative morphology of the male genitalia of Aphididae (Insecta, Hemiptera): part 1

The genital morphology of Zorotypus hubbardi Caudell, 1918 (Insecta: Zoraptera: Zorotypidae)

A comparative morphology of the male genitalia of Aphididae (Insecta, Hemiptera): part 2

Morphology and deep metazoan phylogeny

Early embryonic development of the freshwater shrimp Caridina multidentata (Crustacea, Decapoda, Atyidae)

Ultrastructure of the spermatozoa of Aristaeopsis edwardsiana and Aristeus varidens (Crustacea, Dendrobranchiata, Aristeidae)

Pattern of occurrence of supraneural coelomopores and intertentacular organs in Gymnolaemata (Bryozoa) and its evolutionary implications

Male reproductive system of the red brocade hermit crab Dardanus insignis (Diogenidae) and its relationship to other family members

Mysida and Lophogastrida of Greece: a preliminary checklist

Comparative morphology of the external male genitalia in Lophogastrida, Stygiomysida, and Mysida (Crustacea, Eumalacostraca)