cordatum造句

例句与造句

1. the thirty-four species of the sea urchins belong to 7 order, 17 families and 28 genera . the following is the name list, those with an asterisk are the species recorded for the first time in china . order cidaroida family cidaridae * goniocidaris biserialis ( d6derlein ) * stylocidaris bracteata ( a . agassiz ) * stylocidaris ryukyuensis shigei * stereocidaris indica philippinensis mortensen * rhopalocidaris gracilis doderlein order lepidocentroida family echinothuridae * phormosoma bursarium ( a . agassiz ) araeosoma owstoni mortensen asthenosoma ijimai yoshiwara order stirodonta family phymosomatidae glyptocidaris crenularis a . agassiz family arbaciidae * coelopleurus maculata a . agassiz et h . l . clark * coelopleurus undulatus mortensen order aulodonta family diadematidae chaetodiademajaponicum mortensen family pedinidae * caenopedina mirabilis ( d6derlein ) order camarodonta family temnopledridae temnopleurus hardwickii ( gray ) temnopleurus toreumaticus ( leske ) temnopleurus reevesii ( gray ) temnopleurus apodus ( a . agassiz et h . l . clark ) temnotrema sculptum ( a . agassiz ) temnotrema reticulatum mortensen * microcyphus olivaceus ( d6derlein ) * prionechinus forbesianus ( a . agassiz ) family strongylocentrotidae strongylocentrotus nudus ( a . agassiz ) hemicentrotus pulcherrimus ( a . agassiz ) family echinometridae anthocidaris crassispina ( a . agassiz ) order clypeasteroida family clypeasteridae clypeaster virescens doderlein family laganidae * peronellapellucida d5derlein family scutellidae * scaphechinus mirabilis a . agassiz sinaechinocyamus planus liao family fibulariidae fibularia acuta yoshiwara order spatangoida family loveniidae-lovenia triforis koehler echinocardium cordatum ( pennant ) family schizasteridae schizaster lacunosus ( linnaeus ) family brissidae * gymnopataqus magnus ( a . agassiz & h . l . clark ) family spatangidae * spatangus luetkeni a . agassiz among the species reported, the following species call for notes or simple descriptions
   本文根据th.mortensen(1928-1955)海胆专著(amonographoftheechinoidea)中的主要分类依据，将海胆纲分为8个目：1)头帕目(cidaroidea)有齿器，围肛部在顶系内，围口部有步带板和间步带板，大棘很大，有外皮层，无球棘；2)鳞棘目(lepidocentroida)有齿器，围肛部在顶系内，围口部仅有步带板，大棘不很大，无外皮层，有球棘；3)脊齿目(stirodonta)有齿器，围肛部在顶系内，齿器的齿有脊，桡骨片在齿上方不相接，颚孔开放；4)管齿目(aulodonta)齿器的齿无脊，围肛部在顶系内；5)拱齿目(camarodonta)有齿器，围肛部在顶系内，齿器的齿有脊，桡骨片在齿上方相接，颚孔封闭；6)全雕目(holectypoida)有齿器，但不发达或完全被吸收，围肛部在顶系外，步带不形成瓣状和叶鳃；7)?形目(clypeasteroida)齿器发达，围肛部在顶系外，步带形成瓣状，无叶鳃；8)猬团目(spatangoida)无齿器，围肛部在顶系外，叶鳃发达，步带形成瓣状。
2. It's difficult to find cordatum in a sentence. 用cordatum造句挺难的