Callistochiton

Belongs within: Ischnochitonina.

Callistochiton is a genus of chitons with a conspicuously sculptured tegmentum found in temperate seas (Smith 1960).

Characters (Smith 1960): Tegmentum conspicuously sculptured, central areas smooth in middle, with netted pattern or pitted toward apex, or sculptured throughout with parallel lirae. Insertion plates short, smooth or nearly so, festooned, being curved outward at ribs and slit at rib terminations, thickened outside at edges of slits; end valves multiple-slitted, intermediate valves single-slitted; sinus squared; mucro median, usually depressed. Girdle narrow, poreless, densely set with minute striated or smooth imbricating scales.

<==Callistochiton Carpenter in Dall 1879SF77 (see below for synonymy)
    |--*C. palmulatus Carpenter in Dall 1879S60
    |    |--C. p. palmulatusO27
    |    `--C. p. mirabilis Pilsbry 1892O27
    |--C. acinatus Dall 1919O27
    |--C. aepynotus Dall 1919O27
    |--C. antiquus (Reeve 1847)SF77 [=Chiton antiquusH09]
    |--C. augustensisBRW98
    |--C. broomensisBRW98
    |--C. carmenae Smith & Ferreira 1977SF77
    |--C. celetus Dall 1919O27
    |--C. chthonius Dall 1919O27
    |--C. clenchiBRW98
    |--C. coccus (n. d.) [=Chiton coccus]BRW98
    |--C. crassicostatus Pilsbry 1892O27
    |--C. cyanosus Dall 1919O27
    |--C. decoratus Carpenter in Pilsbry 1892O27
    |    |--C. d. decoratusO27
    |    |--C. d. infortunatus Pilsbry 1892O27
    |    `--C. d. punctocostatus Pilsbry 1896O27
    |--C. diegensis Theile 1910O27
    |--C. fisheri Dall 1919O27
    |--C. flavidus Thiele 1910R71
    |--C. gabbi Pilsbry 1893SF77
    |--C. generosBRW98
    |--C. graniferBRW98
    |--C. inexpectusS60
    |--C. mafiaensis Davis 1954BE93
    |--C. mawleiBRW98
    |--C. occiduusBRW98
    |--C. pectinatus (Sowerby 1840)R71 (see below for synonymy)
    |--C. pulchellus (Gray 1828)SF77 [=Chiton pulchellusO27]
    |--C. recens (n. d.)BRW98
    |--C. reticulatusS60
    `--C. shuttleworthianus Pilsbry 1893SF77

Callistochiton Carpenter in Dall 1879^SF77 [incl. Callistassecla Iredale & Hull 1925^S60, Callistelasma Iredale & Hull 1925^S60, Ischnoplax Carpenter in Dall 1879^S60, Lophochiton Ashby 1923^S60]

Callistochiton pectinatus (Sowerby 1840)^R71 [=Chiton pectinatus^R71, Ischnochiton (*Ischonoplax) pectinatus^S60, I. (Stenoplax) pectinatus^R67; incl. Chiton acutiliratus Reeve 1847^R67, Callistochiton incurvatus Leloup 1953^R67]

*Type species of generic name indicated

References

[BRW98] Beesley, P. L., G. J. B. Ross & A. Wells (eds) 1998. Fauna of Australia vol. 5. Mollusca: The Southern Synthesis. Part A. Australian Biological Resources Study: Canberra.

[BE93] Benton, M. J., & D. H. Erwin. 1993. Mollusca: Amphineura and ‘Monoplacophora’. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 125–130. Chapman & Hall: London.

[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.

[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 3. Stanford University Press: Stanford University (California).

[R67] Righi, G. 1967. Sôbre Polyplacophora do litoral brasileiro. Papéis Avulsos de Zoologia 20 (9): 85–98.

[R71] Righi, G. 1971. Moluscos poliplacóforos do Brasil. Papéis Avulsos de Zoologia 24 (9): 123–146.

[S60] Smith, A. G. 1960. Amphineura. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt I. Mollusca 1: Mollusca—General Features, Scaphopoda, Amphineura, Monoplacophora, Gastropoda—General Features, Archaeogastropoda and some (mainly Paleozoic) Caenogastropoda and Opisthobranchia pp. I41–I76. Geological Society of America, and University of Kansas Press.

[SF77] Smith, A. G., & A. J. Ferreira. 1977. Chiton fauna of the Galápagos Islands. Veliger 20 (2): 82–97.