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166 results for “Sacoglossa”
FIGURE 66. Elysia christinae n in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 66. Elysia christinae n. sp., SEM of the radula and penis (LACM 3309). A, Complete radula. B, Leading tooth. C, Penis.
FIGURE 47 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 47. Elysia cornigera, SEM of the radula and penis. A, Radula, without ascus (CPIC 00078). B, Leading tooth, showing denticulate keel and smooth lateral edge (CPIC 00078). C, Leading tooth, showing serrated keel and denticulate lateral edge (CPIC 00081). D, Penis (LACM 173227).
FIGURE 46 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 46. Elysia cornigera, drawing of renopericardial complex and dorsal vessel network from photograph of live specimen (isolate Ecor_06Jam01, 3 mm long).
FIGURE 45 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 45. Elysia cornigera, external morphology and egg masses. A, Side view of live specimen from Geiger Beach, Key West, Florida (isolate Ecor_07Gei01; 4 mm long); note elongated, tapering rhinophores with knobby appearance, and orange vesicles in the epidermis. B–C, Specimen from Discovery Bay, Jamaica (isolate Ecor_06Jam01; 3 mm long). Side view showing larger anterior and smaller posterior wing-flap extensions to the parapodium, and large brown epithelial granules (B); dorsal view showing renopericardium (C). D–F, Specimen from Geiger Beach, Key West, Florida (isolate Ecor_07Gei01; 6 mm), showing red and orange spots on white parapodial flanks (D), larger brown granules embedded in anterior edge of parapodium (E), and, moustache of black spots on the oral lobes (F). G–H, Egg masses laid by two Florida specimens, showing semi-transparent (G) or pale yellow (H) ribbon of ECY and early-stage embryos; scale bars = 130 µm.
FIGURE 44 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 44. Elysia patina, SEM of the radula and penis. A, Complete radula (LACM 178652). B, Leading tooth (LACM 178649). C, Leading tooth (LACM 178652). D, Penis (LACM 178652), E, Loose teeth, showing triangular-shaped depressions.
FIGURE 42 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 42. Elysia patina, external morphology and egg mass; all specimens 6–8 mm in length from Sweetings Cay, Grand Bahamas Island, Bahamas. A–D, Views of four different live specimens showing brown transverse bands on rhinophores, and color variation from white to tan to brown-green, with white papillae. E, Relaxed specimen (8 mm) showing elongated renopericardial complex, dorsal vessel network, and opaque white gametic vesicles. F, Live specimen (6 mm) with parapodia held open showing dorsal vessels lined in iridescent blue, and gametic vesicles in a semi-transparent state. G, Egg mass spiral showing flat orange ECY ribbon above uncleaved ova. Actual diameter = 2 mm.
FIGURE 41 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 41. Elysia nisbeti, external morphology, dorsal vessels and radula. A, Photograph of holotype (BMNH 19774.W), showing dorsal vessels on right inner parapodial surface; holotype lacking head. B, Renopericardium and dorsal vessel network drawn from right side of holotype. C, Drawings of live animal (fig. 25b, c) and radula (fig. 26d) reproduced from Thompson (1977). D, Live specimen tentatively identified as E. nisbeti by external morphology, including the distinctive "Y"-shaped marking on head; photographed by J. Hamann in Bermuda.
FIGURE 34 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 34. Elysia serca, dorsal vessels drawn of a preserved specimen collected on Lee Stocking Island, Bahamas (LACM 172293; 2.5 mm long × 1.2 mm wide).
FIGURE 43 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 43. Elysia patina, drawing of renopericardial complex and dorsal vessel network traced from photographs of live specimens collected from Sweetings Cay, Bahamas in 2007: left, isolate Epat_07Swe01; right, isolate Epat_07Swe02. Grey areas represent sperm-storage vesicles.
FIGURE 31 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 31. Elysia canguzua, drawings of renopericardium and dorsal vessel network from a preserved specimen (LACM 178643; 5.5 mm long × 5 mm wide).
FIGURE 27 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 27. Elysia velutinus, external morphology and egg mass. Specimens photographed following field collection from Bocas del Toro, Panama (A–C, G; Dec 2004); Sweetings Cay, Bahamas (D–E; Jul 2007); or San Salvador, Bahamas (F; Jul 2007). All measurements give body length of specimens. A–B, Specimen (11 mm) with light green ground color and scattered tan spots. C, Darker green specimen, top view only (14 mm). D–E, Specimen (7 mm) showing characteristic white patch on head, and large white patches across parapodia. F, Specimen (9 mm) with sparse white patches along parapodial margin. G, Specimen (10 mm) with parapodia open, showing renopericardial complex and dorsal vessel network. H, Close-up of egg mass laid by specimen from San Salvador, Bahamas, showing orange ECY ribbon folding back and forth between capsules, each containing one lecithotrophic veliger larva. Scale bar = 200 µm.
FIGURE 26 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 26. Elysia subornata, SEM of the radula and penis. A, Complete radula (CPIC 00077). B, Leading tooth (CPIC 00077). C, Ascus (CPIC 00077). D, Penis (CPIC 00076). E, Complete radula (LACM 172297). F, Leading tooth (LACM 172297).
FIGURE 20 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 20. Elysia papillosa, SEM of the radula and penis. A, Radula minus a jumbled ascus (LACM 178613). B, Leading tooth (LACM 178613). C, Leading tooth, (LACM 178600). D, Penis, with stylet (LACM 178600). E, Penial stylet, dorsal and ventral views (LACM 178618).
FIGURE 17 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 17. Elysia chlorotica, SEM of the radula (LACM 178597). A, Radula, without ascus. B, Leading tooth. C, Close-up of cusp showing denticles.
FIGURE 30 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 30. Elysia canguzua, external morphology of live specimen from Dry Tortugas, FL, USA (length of slug = 12 mm). A, Dorsal view of head, showing raised anal papilla and renopericardium. B, Side view of same specimen. Swollen white pustular glands visible inside parapodia. C, Ventral surface of foot, showing transverse groove separating the head. D, Interior of parapodia, showing renopericardial complex and dorsal vessels.
FIGURE 15 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 15. Elysia chlorotica, external anatomy of specimens from Martha's Vineyard, MA, U.S.A. A–B, Dorsal view with the parapodia partially folded. C, Lateral view. D, Dorsal view of specimen flattened against the substratum. Approximate size of live specimens was 2 cm resting.
FIGURE 13. Evolutionary relationships among a in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 13. Evolutionary relationships among a subsample of COI haplotypes from specimens of E. crispata, inferred by Maximum Likelihood. Significant bootstrap values are given adjacent to supported nodes. External morphology of 15 specimens with bolded isolate codes is shown in Fig. 14, with the corresponding panel given in parentheses. Terminals with multiple isolates denote haplotypes sampled more than once; multiple specimens from the same site and year are indicated by two-digit numbers following the corresponding year-site combination, except the total number from two sites is given for the common haplotype sampled in the Dry Tortugas, Dominica and St. Lucia.
FIGURE 12 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 12. Elysia crispata, SEM of the radulae of additional specimens. A, Leading tooth (LACM 178592); white arrow indicates sharp transition between denticulate edge and rest of tooth. B, Leading tooth (LACM 178584). C, Leading tooth (LACM 178590). D, Leading tooth (LACM 178638). E, Leading tooth (LACM 178588). F, Leading tooth (LACM 178589).
FIGURE 25 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 25. Elysia subornata, drawing of renopericardial complex and dorsal vessel network of preserved specimen collected in Martinique, 2013 (LACM 178630; 15 mm long × 9 mm wide).
FIGURE 19 in Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region
FIGURE 19. Elysia papillosa, renopericardial complex and dorsal vessel network traced from digital photograph of live specimens from Panama. Top, isolate Epap_04Pan01, length = 12 mm. Bottom, Epap_04Pan07, length = 10 mm. Grey areas represent sperm-storage vesicles.
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