Other formats

    Adobe Portable Document Format file (facsimile images)   TEI XML file   ePub eBook file  

Connect

    mail icontwitter iconBlogspot iconrss icon

Zoology Publications from Victoria University of Wellington—Nos. 58 to 61

Plate 1

Plate 1page 21

Plate 1

Fig. 1: A hydranth of S. tenella, from life, as seen under dark field illumination, × 100.

A, M, B, regions corresponding to the apical, middle and basal regions, respectively, seen in longitudinal sections of hydranths; G, developing gonophore; H, hydrocaulus; T, tentacle.

Fig. 2: Transverse section through apical hydranth region. Note villated endoderm with gland cells situated at periphery of villi. PAS/AB/NYS stain, × 410.

EN, endoderm; G, gland cells.

Fig. 3: Longitudinal section through basal hydranth region. Note columnar ectodermal cells, and vacuolated endodermal cells. Many endodermal cells contain food vacuoles. Mallory/Azan stain, × 1,000.

EC, ectoderm; EN, endoderm; M, mesogloea.

Fig. 4: Transverse section of hydranth in apical region to show cuticle hanging from ectoderm. Mallory/Azan stain, × 1,000.

C, cuticle; EC, ectoderm; M, mesogloea; T, tentacle base.

Fig. 5: Transverse section of ectoderm and mesogloea in apical region, showing small cells (arrows) considered to be interstitial cells. Delafield's haematoxylin and eosin preparation, × 1,000.

EC, ectoderm; M, mesogloea; N, nerve cell; NU, nuclei of epitheliomuscular cells.

Fig. 6: Longitudinal section of hydrocaulus at base of hydranth, stained with PAS/haematoxylin. The perisarc, mesogloea, and ectodermal cell granules stain intensely with Schiff's reagent, × 2,000.

EC, ectoderm; M, mesogloea; P, perisarc.

Fig. 7: Longitudinal section of hydranth in apical region showing nerve cell at base of ectoderm with nerve process crossing mesogloea to endoderm. Heidenhain's iron haematoxylin stain, × 1,000.

EC, ectoderm; EN, endoderm; N, nerve cell.

Fig. 8: An endodermal epitheliomuscular cell from a dissociation preparation. The flagellum is not visible. Phase contrast photomicrograph, × 700.

M, myoneme; N, nucleus.