Definitions

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Branchiostegal spine

See: Carapace spine b [Martin, 2005]
See: Carapace spines b [McLaughlin, 1980]
A short spine located on or near the anterior margin of the carapace, ventral to the antennal spine in the shrimps; in crayfishes, immediately ventral to the anterior extremity of the cervical groove. [Hobbs, Hobbs, and Daniel 1977]
A short spine on or near the anterior margin of the carapace of some shrimps ventral to the antennal spine and dorsal to the anterolateral angle of the carapace. [Chace and Hobbs, 1969]
Short spine on or near the anterior margin of the carapace ventral to the antennal spine and dorsal to the anteroventral angle of the carapace (Fig. 2A). [Perez Farfante and Kensley, 1997]
Short spine situated on or near anterior margin of carapace, ventral to antennal spine in shrimps; in crayfishes, located immediately ventral to anterior extremity of cervical groove (see Fig. 13). [Hobbs and Jass, 1988]
Spine on anterior edge of carapace, or near it, immediately below branchiostegal groove (Fig. 2). [Williams, 1984]
Spine on or near anterolateral margin of the carapace of some shrimps, ventral to antennal spine and dorsal to pterygostomian spine. [Butler, T. H.]
(Taxon-specific: Order Decapoda) Anteriorly directed, spine-like projection on branchial region on each side of carapace in shrimp-like (natantian) decapod; located at anterior margin, below branchiostegal groove and between antennal and pterygostomial spines. [Stachowitsch, 1992]
(Taxon-specific: Order Mysida) Spine. [Stachowitsch, 1992]