@article{oai:ir.kagoshima-u.ac.jp:00004801,
 author = {NAKAMURA, Kaworu and SUGIHARA, Yoshirou},
 journal = {鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University},
 month = {2016-10-28},
 note = {The mandible of the prawn Penaeus japonicus is provided with two points of articulation.
One of them, upper joint, consists of a dorsal tip of the outside of the mandible and a cap-like
covering which is a protector named in this experiment as the joint apparatus. The other is
a lower joint which is separated into two combinations ; a fist-like process of the
ventro-posterior rim of the epistomal plate, articulated with the receptor process of the frontal
edge of the gnathal lobe of the mandible and its near part touched with the antero-superior
edge of the gnathal lobe. Movement of the paired mandible is restricted to a single plane
which lies perpendicular to the hinged line. The planes of movement for two mandibles are
orientated at approximately 30° to the sagittal plane. Mandibular muscles can be divided into
two groups ; adductors and abductors. Adductors are the major and minor muscle bundles.
The major mandibular adductor has its origin on the endophragmal skeleton and attaches to
the lateral carapace. The minor mandibular adductor connects the dorsal carapace with the
posterior rim of the mandible on which an oar-like apodeme is prepared. The abductor is
composed of four members. Each connects superior inside of the gnathal lobe with the lateral
carapace. Innervation of mandibular muscles is as follows ; the major and minor mandibular
adductors receive respective nerves derived from the circumoesophageal connective, and the
mandibular abductors are innervated by two paired nerves derived from the commissural
ganglion and circumoesophageal connective.},
 pages = {81--89},
 title = {Morphological Study on the Mandibular Organ of the Prawn Penaeus japonicus BATE},
 volume = {32},
 year = {}
}