{"refrec":{"BRefID":116825,"RR":"<b>Kinjo, S.; Uehara, T.; Yazaki, I.; Shirayama, Y.; Wada, H.</b> (2006). Morphological diversity of larval skeletons in the sea urchin family Echinometridae (Echinoidea: Echinodermata). <i>J. Mar. Biol. Ass. U.K. 86(4)</i>: 799-816. <a href=\"https://dx.doi.org/10.1017/S0025315406013725\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315406013725</a>","BEntID":111140,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Mar. Biol. Ass. U.K. 86(4)</i>: 799-816. <a href=\"https://dx.doi.org/10.1017/S0025315406013725\" target=\"_blank\">https://dx.doi.org/10.1017/S0025315406013725</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Kinjo, S.; Uehara, T.; Yazaki, I.; Shirayama, Y.; Wada, H.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Kinjo, S. <i>et al.</i>","Englishabstract":"To clarify the morphological variety of larval skeletons, a detailed morphological comparison among the species of the family Echinometridae was performed. Through conspecific comparison of larval skeletons among different ages, five skeletal characters of the body skeleton that are stable in the four-armed pluteus and thus useful in homologous comparison among the species were found. The morphological variation was summarized as the difference in the number of spines and posteroventral transverse rods, and differences in the shape of the body skeleton. Significant correlations were found between some skeletal characters, such as between upper body length and bottom width of body skeleton and between lower body length and the number of spines. 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