Species Card of Copepod
Monstrilloida ( Order )
    Monstrillidae ( Family )
        Cymbasoma ( Genus )
Cymbasoma californiense  Suarez-Morales & Palomares-Garcia, 1999   (F)
Ref.:
Suarez-Morales & Palomares-Garcia, 1999 (p.190, Descr.F, figs.F); Suarez-Morales, 2002 (p.95: tab.1)
Species Cymbasoma californiense - Plate 1 of morphological figuresIssued from : E. Suarez-Morales & R. Palomares-Garcia in Proc. Biol. Soc. Washington, 1999, 112 (1). [p.192, Fig.2].
Female (from 24.69°N; 112.07°W): A-B, habitus (lateral and dorsal, respectively); C, ovigerous spine.

Nota:
- Cephalothorax (incorporating 1st pedigerous somite) accounting for almost 65% of total body length (caudal rami excluded).
- Oral papilla lying midventrally 0.21 of way back along cephalothorax.
- Nauplius eye present, weakly developed, ocelli slightly pigmented with rounded shape
- A1 4-segmented; ratio of lengths of segments 11.3 : 23.1 : 14.3 : 51.3 = 100. A1 slightly longer than 17.5% of total body length (caudal rami excluded), and 25.5% of cephalothorax length.
- P5 joined medially; each with rounded endopodal lobe; exopodal lobe 2 times longer than wide, with 2 long, equal plumose setae, and 1 short inner, plumose seta, about 28% as long as the other two.
- Urosome consisting of 5th pedigerous somite, genital double-somite, 1 free abdominal (anal) somite, and caudal rami, altogether representing 14.3% of total body length.
- Genital double-somite slightly longer than 1/3 total length of urosome (35%)
- Ratio of lengths of 5th pedigerous somite, genital double-somite, and free abdominal somite 37.5 : 35.5 : 26.6 = 100.
- Ovigerous spines about 1.4 times total body length.
- Caudal rami short, 1.2 times longer than wide, moderately divergent, bearing 3 strong, terminal setae, middle seta slightly thicker than others.


Species Cymbasoma californiense - Plate 2 of morphological figuresIssued from : E. Suarez-Morales & R. Palomares-Garcia in Proc. Biol. Soc. Washington, 1999, 112 (1). [p.193, Fig.3].
Female: A, genital complex and P5 (ventral); B, right A1 (dorsal); C, left A1 (dorsal; with armature following the nomenclature of Grygier & Ohtsuka, 1995); D, urosome and caudal rami (dorsal); E, forehead (dorsal).


Species Cymbasoma californiense - Plate 3 of morphological figuresIssued from : E. Suarez-Morales & R. Palomares-Garcia in Proc. Biol. Soc. Washington, 1999, 112 (1). [p.194].
Female: Setae (Arabic numerals) and spines (Roman numerals) formula of swimming legs P1 to P4.


Species Cymbasoma californiense - Plate 4 of morphological figuresIssued from : E. Suarez-Morales & R. Palomares-Garcia in Proc. Biol. Soc. Washington, 1999, 112 (1). [p.195, Fig.4].
Female: A, right P1 (posterior); B, left P2 (posterior); C, right P3 (posterior); D, right P4 (posterior); E, ovigerous spines (detail of distal portion).


Species Cymbasoma californiense - Plate 5 of morphological figuresIssued from : Suarez-Morales in Mitt. Mus. Nat.kd. Berl., Zool. Reihe, 2002, 78. [p.95, Table 1].
Comparison of main taxonomic features in species of Cymbasoma with a cephalothorax relative length equal or over 60%, females only: C. californiense Suarez-Morales & Palomares, 1999.
Mouth position way back anterior part of forehead in percentage of the cephalothorax length.
Compare with C. bowmani, C. boxshalli, C. longispinosum, C. morii, C. nicolettae, C. quintanarooense, C. striatus, C. thompsoni, C. tumorifrons, C. sp. (from Brazil), C. chelemense.

NZ: 1

Distribution map of Cymbasoma californiense by geographical zones
Loc:
NE Pacif. (S Baja California : Bahia Magdalena)
N: 1
Lg.:
(856) F: 2,1 [without furca]; {F: 2,10}
Last update : 21/04/2015
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[Accessed August 31, 2015]

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