Affiliation:
1. Hokkaido Research Organization, Central Fisheries Research Institution , Yoichi, 045-8555 Hokkaido , Japan
2. Canterbury University , Christchurch, 8040 New Zealand (deceased on 9 December 2022)
Abstract
Abstract
The alternation of the female form is examined in eleven species of Cambaridae: Cambarus angularisHobbs & Bouchard, 1994, C. bartonii (Fabricius, 1798), Faxonius virilis (Hagen, 1870), Procambarus alleni (Faxon, 1884), P. clarkii (Girard, 1852), P. fallax (Hagen, 1870), P. pallidus (Hobbs, 1940), Cambarellus leslieiFitzpatrick & Laning, 1976, C. patzcuarensisVillalobos, 1943, C. schmittiHobbs, 1942, and C. shufeldtii (Faxon, 1884). All species show form-alternation in their annulus ventralis, that of Form I showing a cornified sinus and inflated fossa, but the Form-II females show a un-cornificed sinus and deflated fossa. Morphology of the Form-II annulus ventralis is similar to that of a juvenile. A wider abdomen in Form-I females occurred in five species (C. angularis, C. virilis, C. lesliei, C. schmitti, and C. shufeldtii), and inflation of the palm of the cheliped in Form-I females was observed in four (C. angularis, C. bartonii, F. virilis, and P. clarkii). The range of morphometric female-form alternation demonstrates four patterns: 1) wider abdomen and inflated chela (C. angularis, and C. bartonii), 2) wider abdomen and no chela inflation (C. lesliei, C. schmitti, and C. shufeldtii), 3) no wide abdomen and inflated chela (F. virilis and P. clarkii), 4) no wider abdomen and no chela inflation (P. alleni, P. pallidus, and P. fallax,). A neotype of P. clarkii is also designated and described.
Publisher
Oxford University Press (OUP)
Reference53 articles.
1. Courtship in the crayfish Procambarus clarkii (Girard) (Decapoda, Astacidea);Ameyaw-Akumfi;Crustaceana,1981
2. Conjugation in an American crayfish;Andrews;American Naturalist,1895
3. Ontogeny of the annulus ventralis;Andrews;Biological Bulletin,1906
4. The annulus ventralis;Andrews;Proceeding of Boston Society of Natural History,1906
5. Sperm-transfer organs in Cambaroides;Andrews;Biological Bulletin,1909