frontal lamina
(Order Isopoda):
A sternal plate arising between the bases of the antennae and probably homologous to the epistome of their arthropods; in many isopods the frontal lamina may extend anteriorly to be visible in the dorsal aspect; in many Valvifera the upper and lower regions of this structure may be separately elevated and visible in the dorsal aspect as two distinct structure (frontal lamina 1 and frontal lamina 2) [Wetzer et al. 1997].
()
Schematic representation of an isopod illustrating morphological terms. [Kensley and Schotte, 1989]
(Order Isopoda):
Plate-like structure anterior to mouth-parts, usually situated between antennae, (pentagonal, quadrate, spiniform, triangular) [Stachowitsch, 1992].
(Order Isopoda):
Platelike structure of the cephalon immediately anterior to, and sometimes fused with, clypeus [Kensley and Schotte, 1989].
()
Nomenclature of isopod cephalon (A). Examples of isopod mouth appendages: Idoteidae (B, C, F, H); Cirolanidae (D, E, G, I). [Wetzer et al. 1997]

Crustacea glossary. . 2011.

Look at other dictionaries:

  • frontal process — Pair of unique sensory structures of unknown function on the head of remipedes [Brusca and Brusca, 2002]. (Order Isopoda): The lower region of the epistomal plate or sclerite, in which some Valvifera projects outward to become visible in the… …   Crustacea glossary

  • frontal margin — (Order Isopoda): Separates the upper surface of the cephalon from the frontal lamina; anterior margin of cephalon [Wetzer et al. 1997] …   Crustacea glossary

  • Frontal bone — Bone: Frontal bone Frontal bone highlighted in red Latin os frontale Gray s …   Wikipedia

  • Frontal crest — Bone: Frontal crest Frontal bone. Inner surface. (Frontal crest visible at center but not labeled.) Latin crista frontalis Gray s …   Wikipedia

  • Hueso frontal — Frontal Imagen frontal del hueso frontal Latín Os frontale Gray …   Wikipedia Español

  • Orbital lamina of ethmoid bone — Ethmoid bone from the right side. (Lamina papyracea visible at center left.) …   Wikipedia

  • Orbital part of frontal bone — Frontal bone. Outer surface. (The Pars orbitalis is the bottom third.) F …   Wikipedia

  • Cistern of lamina terminalis — The cistern of lamina terminalis is a cistern of the subarachnoid space in the brain. This particular cistern lies in front of (rostral to) the lamina terminalis and anterior commissure between the two frontal lobes of the cerebrum.[1] The… …   Wikipedia

  • clypeus — An unpaired dorsal unit of the cephalon bearing the labrum medially and the mandibular fossae laterally. The fossae articulate with the dorsal condyle of the mandibles [Wilson, 1989]. Part of head carrying labrum; plate on anterior medial part of …   Crustacea glossary

  • labrum — A bulbous structure lying next to the epistome and bordering the anterior margin of the oral opening. (Syn. upper lip) [Holdich and Jones, 1983]. An unpaired, flat segment of the cephalon that articulates with the clypeus, and anteriorly covers… …   Crustacea glossary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”