Tetraclitidae Gruvel 1903

Lateral..

Catalog number(s): USNM 48055, ANSP unrecorded catalog number Subject: whole specimen, plates, colony Artist: Winchester, Helen Medium: Ink wash & pencil on paper and retouched photos Published: Pilsbry, Henry Augustus 1916 The sessile barnacles (Cirripedia) contained in the collections of the U. S. National museum; including a monograph of the American species, Bulletin (United States National Museum); 93. Plate #58. Fig. 5, 5a-b, 6, 6a.

Catalog number(s): USNM 48053, 48054, 48060 Subject: whole specimen, plates Artist: Winchester, Helen Medium: Ink wash & pencil on paper and retouched photos Published: Pilsbry, Henry Augustus 1916 The sessile barnacles (Cirripedia) contained in the collections of the U. S. National museum; including a monograph of the American species, Bulletin (United States National Museum); 93. Plate #58. Fig. 1, 2, 2a, 3, 3a.

Catalog number(s): USNM 48061 Subject: whole specimen, plates, colony Artist: Winchester, Helen Medium: Ink wash & pencil on paper and retouched photos Published: Pilsbry, Henry Augustus 1916 The sessile barnacles (Cirripedia) contained in the collections of the U. S. National museum; including a monograph of the American species, Bulletin (United States National Museum); 93. Plate #60. Fig. 3, 3a-b.

Catalog number(s): USNM 48056, 48057, 26360, 48058, ANSP unrecorded catalog number Subject: whole specimen, plates, colony Artist: Winchester, Helen Medium: Ink wash & pencil on paper and retouched photos Published: Pilsbry, Henry Augustus 1916 The sessile barnacles (Cirripedia) contained in the collections of the U. S. National museum; including a monograph of the American species, Bulletin (United States National Museum); 93. Plate #59. Fig. 1, 1a-b, 2, 3, 4, 5a&b.

Catalog number(s): USNM 48059 Subject: whole specimen, plates Artist: Winchester, Helen Medium: Ink wash & pencil on paper and retouched photos Published: Pilsbry, Henry Augustus 1916 The sessile barnacles (Cirripedia) contained in the collections of the U. S. National museum; including a monograph of the American species, Bulletin (United States National Museum); 93. Plate #60. Fig. 1, 1a-d.

Figure 1. Tetraclita ehsani sp. n. A external parietes of the holotype and the top and basal view of the parietes of a paratype (ASIZCR 000231); note the basal view showing the parietal tubes B external view of scutum and tergum of the paratype (ASIZCR 000231) C internal view of scutum and tergum, (ASIZCR 000231); arrows indicate the diagnostic features of tergum from other Western Indian Ocean species (see table 1) D drawing of the holotype of the scutum and tergum E Scutum and tergum of Tetraclita rufotincta collected from Yemen (type locality) (after Chan et al. 2009) F scutum and tergum of Tetraclita reni collected from Madagascar (type locality) (after Chan et al. 2009).

Wilsons Promontory, Victoria, Australia

Two large sessile barnacles washed up on the beach. There are very few barnacles of any kind in the beach drift on Nevis.

Figure 2. Tetraclita ehsani sp. n. Light microscopy showing: A mandibular palp B labrum (two individuals) C mandibles (3 individuals) and with enlarged views of lower margin and inferior angle D maxillule (2 individuals) and E maxilla.

Figure 3. Tetraclita ehsani sp. n. SEM showing: A mandibular palp B, C serrulate type setae on mandibular palp D labrum E cutting edge of labrum showing the 4 large sharp teeth F simple type setae on inner side of labrum G mandible H simple setae on the lateral side of the mandible I second bi-dentated tooth of the mandible J third tri-dentated tooth of the mandible K, fourth and fifth tooth of the mandible L, serrulate blade shaped setae on mandible M Maxillule N, O serrulate setae on maxillule surface P maxilla Q, R, serrulate setae on maxilla S simple setae on tip of maxilla.

Figure 4. Tetraclita ehsani sp. n. Light microscopy showing: A cirrus I B cirrus II C cirrus III D bidentate serrulate type setae on rami of cirrus III E intermediate segment of anterior ramus of cirrus VI F Long serrulate setae at cirrus VI. ANT – Anterior ramus, POS – Posterior ramus.

with sponges

Figure 5. Tetraclita ehsani sp. n. SEM showing: A cirrus I B, C, D, serrulate type setae on rami of cirrus I E cirrus II F, G serrulate type setae on rami of cirrus II H cirrus III I, J, K, serrulate type setae on rami of cirrus III L serrulate type setae on protopod of cirrus III M pappose setae on protopod of cirrus III.

Washed up on beach near Mata Limon, Costa Rica.

Washed up on beach near Mata Limon, Costa Rica.

Washed up on beach near Mata Limon, Costa Rica.

Washed up on beach near Mata Limon, Costa Rica.

upper surface boulder, exposed coast

Washed up on beach near Mata Limon, Costa Rica.

Barnacle. ID ?? Guess at Balanus genus. Unusually large, flat species which I'm struggling to identify. Almost the size of an adult Cellana radians limpet but even lower profile with quite small parieties compared to the diameter of the shell structure. Initially on turning the cobble it looked to be a flat worm until given a prod and realisation it was a fixed hard encrustation dawned.

Not come across this shape before. 10mm long. Living in a shallow rock pool in the high intertidal zone

Not too sure which ones these are. Small, under 10mm and found under a rock in the low intertidal zone.

Not too sure which ones these are. Small, under 10mm and found under a rock in the low intertidal zone.