Storch V, Higgins R P
Zoologisches Institut der Universität Heidelberg, D-6900 Heidelberg, F.R.G.
Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560.
J Morphol. 1991 Nov;210(2):175-194. doi: 10.1002/jmor.1052100207.
The larvae of Halicryptus spinulosus bear six rings of sensory/ locomotory appendages. Twelve pedicellate flosculi, 6 dorsal and 6 ventral, are associated with the neck-lorica junction. Newly described are two rows of 4-5 flosculi present on the dorsal and ventral plates, and 2 tubuli located on each dorsolateral and ventrolateral plate near their junction with the midlateral plate. The ultrastructure of all organ systems is described. The multilayered lorica differs significantly from that of other priapulids. The anterior fourth of the lorica is not underlain by epidermal cells. At the junction of the introvert and neck are a series of adhesive tubuli that have groups of secretory cells basally. A gland is described at the junction of the fore- and midgut.
小刺隐毛虫的幼虫有六圈感觉/运动附肢。十二根具柄的小触手，6根在背部，6根在腹部，与颈部围鞘连接处相连。新描述了在背腹板上有两排4 - 5个小触手，以及在每个背外侧和腹外侧板靠近它们与中外侧板连接处有2个细管。描述了所有器官系统的超微结构。多层围鞘与其他鳃曳动物的围鞘有显著差异。围鞘的前四分之一没有表皮细胞作为基础。在翻吻和颈部的连接处有一系列粘性细管，其基部有成组的分泌细胞。描述了在前肠和中肠连接处的一个腺体。
